The table below was made by taking all of the existing CHRIS codes in the ERNS 1982-2002 database. "Official" CHRIS codes are those listed in the CHRIS code manual, "Unofficial or invalid" ones are in the database either because of specialized use at the National Response Center, or because an ERNS notifier supplied the wrong code.
| CHRIS Code | Name of material | Type of Code | Number of records in ERNS |
| AAD | Acetaldehyde | Official | 73 |
| AAC | Acetic acid | Official | 291 |
| ACA | Acetic anhydride | Official | 67 |
| ACT | Acetone | Official | 637 |
| ACY | Acetone cyanohydrin | Official | 26 |
| ATN | Acetonitrile | Official | 42 |
| ACP | Acetophenone | Official | 5 |
| ACC | Acetyl chloride | Official | 3 |
| ATA | Acetylacetone | Official | 1 |
| ACE | Acetylene | Official | 57 |
| ARL | Acrolein | Official | 578 |
| AAM | Acrylamide solution | Official | 31 |
| ACR | Acrylic acid | Official | 102 |
| ACN | Acrylonitrile | Official | 409 |
| ALE | Acrylonitrile-Styrene copolymer dispersion in Polyether polyol | Official | 7 |
| ADA | Adipic acid | Official | 19 |
| ADN | Adiponitrile | Official | 15 |
| ALY | Alcohols (C13+) | Official | 14 |
| ALD | Aldrin | Official | 5 |
| AAP | Alkyl acrylate-Vinyl pyridine copolymer in Toluene | Official | 2 |
| ABS | Alkylbenzenesulfonic acid | Official | 5 |
| ALA | Allyl alcohol | Official | 40 |
| ALC | Allyl chloride | Official | 38 |
| ACF | Allyl chloroformate | Official | 1 |
| ALU | Alum | Unofficial or invalid | 11 |
| ACL | Aluminum chloride | Official | 37 |
| AHS | Aluminum chloride, Hydrochloric acid solution | Official | 1 |
| ALF | Aluminum fluoride | Official | 3 |
| ALN | Aluminum nitrate | Official | 2 |
| APH | Aluminum phosphide | Official | 3 |
| ALM | Aluminum sulfate | Official | 139 |
| ASX | Aluminum sulfate solution | Official | 25 |
| AHL | 2-Amino-2-hydroxymethyl-1,3-propanediol solution | Official | 1 |
| AEA | Aminoethanolamine | Unofficial or invalid | 2 |
| AEX | 2-(2-Aminoethoxy)ethanol | Official | 13 |
| AEE | Aminoethylethanolamine | Official | 8 |
| AMA | Ammonia, anhydrous | Official | 12,820 |
| ABC | Ammonium bicarbonate | Official | 3 |
| ABF | Ammonium bifluoride | Official | 8 |
| ASU | Ammonium bisulfite | Official | 5 |
| ABX | Ammonium bisulfite solution | Official | 8 |
| ANB | Ammonium bromide | Official | 1 |
| ACM | Ammonium carbamate | Official | 8 |
| ACB | Ammonium carbonate | Official | 5 |
| AMC | Ammonium chloride | Official | 20 |
| AMD | Ammonium dichromate | Official | 2 |
| AFB | Ammonium fluoborate | Official | 1 |
| AFR | Ammonium fluoride | Official | 7 |
| AHM | Ammonium hydroxide | Unofficial or invalid | 64 |
| AMH | Ammonium hydroxide (<28% aqueous ammonia) | Official | 145 |
| ALS | Ammonium lauryl sulfate | Official | 1 |
| AMN | Ammonium nitrate | Official | 266 |
| ANR | Ammonium nitrate solution | Official | 8 |
| ANP | Ammonium nitrate-phosphate mixture | Official | 3 |
| ANU | Ammonium nitrate-urea solution | Official | 35 |
| AOX | Ammonium oxalate | Official | 1 |
| AMP | Ammonium perchlorate | Official | 15 |
| APE | Ammonium persulfate | Official | 7 |
| APP | Ammonium phosphate | Official | 19 |
| API | Ammonium picrate, wet | Official | 1 |
| ASL | Ammonium silicofluoride | Official | 2 |
| ASM | Ammonium sulfamate | Official | 4 |
| AMS | Ammonium sulfate | Official | 43 |
| AME | Ammonium sulfate solution | Official | 7 |
| ASF | Ammonium sulfide | Official | 20 |
| ASS | Ammonium sulfide solution | Official | 2 |
| AMF | Ammonium sulfite | Official | 5 |
| AMT | Ammonium thiocyanate | Official | 2 |
| ATF | Ammonium thiosulfate | Official | 29 |
| ATV | Ammonium thiosulfate solution (60% or less) | Official | 2 |
| AEC | Amyl acetate (all isomers) | Official | 1 |
| AML | Amyl acitate | Unofficial or invalid | 4 |
| AAI | Amyl alcohol | Official | 3 |
| AAN | n-Amyl alcohol | Official | 2 |
| AMM | n-Amyl mercaptan | Official | 4 |
| AMK | n-Amyl methyl ketone | Official | 5 |
| ANL | Aniline | Official | 33 |
| ATH | Anthracene | Official | 4 |
| AHO | Anthracene oil (Coal tar fraction) | Official | 4 |
| APC | Antimony pentachloride | Official | 14 |
| APF | Antimony pentafluoride | Official | 2 |
| ATM | Antimony trichloride | Official | 2 |
| ATX | Antimony trioxide | Official | 2 |
| ARX | Arsenic | Official | 186 |
| ASA | Arsenic acid | Official | 50 |
| APO | Arsenic pentaoxide | Official | 7 |
| ATO | Arsenic trioxide | Official | 65 |
| ART | Arsenic trisulfide | Official | 12 |
| ASP | Asphalt | Official | 949 |
| ARF | Asphalt blending stocks: roofers flux | Official | 23 |
| ASR | Asphalt blending stocks: straight run residue | Official | 22 |
| ATZ | Atrazine | Official | 27 |
| AVA | Aviation alkylates | Official | 7 |
| AZM | Azinphos methyl | Official | 9 |
| BRC | Barium carbonate | Official | 3 |
| BCR | Barium chlorate | Official | 4 |
| BNT | Barium nitrate | Official | 1 |
| BZD | Benzaldehyde | Official | 7 |
| BNZ | Benzene | Official | 5,257 |
| BHC | gamma Benzene hexachloride | Official | 15 |
| BHA | Benzene hydrocarbon mix | Unofficial or invalid | 5 |
| BHB | Benzene hydrocarbon mixtures (having 10% Benzene or more) | Official | 13 |
| BPD | Benzene phosphorus dichloride | Official | 2 |
| BTX | Benzene, Toluene,Xylene mixtures | Official | 37 |
| BZI | Benzidine | Official | 1 |
| BZA | Benzoic acid | Official | 28 |
| BZN | Benzonitrile | Official | 3 |
| BZP | Benzophenone | Official | 2 |
| BZQ | p-Benzoquinone | Official | 2 |
| BZC | Benzoyl chloride | Official | 12 |
| BAL | Benzyl alcohol | Official | 5 |
| BCL | Benzyl chloride | Official | 24 |
| BCF | Benzyl chloroformate | Official | 1 |
| BDM | Benzyl dimethylamine | Official | 1 |
| BMA | Benzyltrimethylammonium chloride | Official | 1 |
| BEM | Beryllium | Official | 16 |
| BEF | Beryllium fluoride | Official | 1 |
| BEN | Beryllium nitrate | Official | 4 |
| BEO | Beryllium oxide | Official | 2 |
| BES | Beryllium sulfate | Official | 1 |
| BSS | Bilge slops | Unofficial or invalid | 1,204 |
| BPA | Bisphenol A | Official | 16 |
| BDE | Bisphenol a diglycidyl ether | Official | 1 |
| BCP | Boiler compound, liquid | Official | 3 |
| BAC | Boric acid | Official | 9 |
| BTB | Boron tribromide | Official | 2 |
| BRT | Boron trichloride | Official | 22 |
| BFX | Brake fluid base mixtures | Official | 3 |
| BRX | Bromine | Official | 208 |
| BTF | Bromine trifluoride | Official | 2 |
| BBZ | Bromobenzene | Official | 2 |
| BRO | Bromoform | Official | 1 |
| BPR | 1-Bromopropane | Official | 3 |
| BDI | Butadiene | Official | 3,055 |
| BBM | Butadiene, Butylene mixtures (cont. Acetylenes) | Official | 49 |
| BUT | Butane | Official | 238 |
| BMX | Butane | Official | 13 |
| BDO | 1,4-Butanediol | Official | 5 |
| BNP | 2-Butanone peroxide | Official | 2 |
| BOL | Butene oligomer | Official | 5 |
| BUD | 1,4-Butenediol | Official | 3 |
| BAX | Butyl acetate | Official | 20 |
| BCN | n-Butyl acetate | Official | 36 |
| BTA | sec-Butyl acetate | Official | 6 |
| BTC | n-Butyl acrylate | Official | 56 |
| BAI | iso-Butyl acrylate | Official | 17 |
| BAR | Butyl acrylate | Official | 37 |
| BAN | n-Butyl alcohol | Official | 77 |
| BAT | tert-Butyl alcohol | Official | 20 |
| BAS | sec-Butyl alcohol | Official | 7 |
| BPH | Butyl benzyl phthalate | Official | 17 |
| BYC | Butyl chloride | Official | 2 |
| BFO | n-Butyl chloroformate | Official | 2 |
| BTE | Butyl ether | Official | 4 |
| BHP | tert-Butyl hydroperoxide | Official | 7 |
| BTM | n-Butyl mercaptan | Official | 8 |
| BMN | n-Butyl methacrylate | Official | 8 |
| BMH | Butyl methacrylate | Official | 3 |
| BUE | Butyl toluene | Official | 2 |
| BTY | Butylamine | Official | 2 |
| BUA | tert-Butylamine | Official | 7 |
| BTL | sec-Butylamine | Official | 1 |
| BAM | n-Butylamine | Official | 2 |
| BBE | Butylbenzene | Official | 2 |
| BTN | Butylene | Official | 17 |
| BUG | Butylene glycol | Official | 2 |
| BTO | 1,2-Butylene oxide | Official | 18 |
| BTP | p-tert-Butylphenol | Official | 4 |
| BCS | Butyltrichlorosilane | Official | 1 |
| BTD | 1,4-Butynediol | Official | 5 |
| BAE | Butyraldehyde | Official | 1 |
| BTR | n-Butyraldehyde | Official | 12 |
| BAD | iso-Butyraldehyde | Official | 11 |
| BFA | Butyraldehydes (crude) | Unofficial or invalid | 5 |
| BRA | n-Butyric acid | Official | 9 |
| CDA | Cacodylic acid | Official | 3 |
| CAT | Cadmium acetate | Official | 8 |
| CMB | Cadmium bromide | Official | 2 |
| CDC | Cadmium chloride | Official | 2 |
| CMN | Cadmium nitrate | Official | 4 |
| COX | Cadmium oxide | Official | 18 |
| CMS | Cadmium sulfate | Official | 9 |
| CAM | Calcium | Official | 7 |
| CCA | Calcium arsenate | Official | 49 |
| CCB | Calcium carbide | Official | 49 |
| CCC | Calcium chlorate | Official | 2 |
| CLC | Calcium chloride | Official | 94 |
| CCS | Calcium chloride solution | Official | 25 |
| CCR | Calcium chromate | Official | 2 |
| CCN | Calcium cyanide | Official | 10 |
| CAF | Calcium fluoride | Official | 4 |
| CAH | Calcium hydroxide | Official | 24 |
| CHY | Calcium hypochlorite | Official | 125 |
| CHU | Calcium hypochlorite solution | Unofficial or invalid | 9 |
| CNT | Calcium nitrate | Official | 4 |
| CAO | Calcium oxide | Official | 15 |
| CAL | Calcium phosphate | Official | 1 |
| CLS | Caprolactam | Official | 190 |
| CPT | Captan | Official | 22 |
| CBY | Carbaryl | Official | 6 |
| CBF | Carbofuran | Official | 14 |
| CBO | Carbolic oil (mixture) | Official | 7 |
| CDO | Carbon dioxide | Official | 270 |
| CBB | Carbon disulfide | Official | 136 |
| CMO | Carbon monoxide | Official | 884 |
| CBT | Carbon tetrachloride | Official | 779 |
| CAR | Carene | Official | 1 |
| CTC | Catechol | Official | 31 |
| CPS | Caustic potash solution | Official | 27 |
| CSS | Caustic soda solution | Official | 749 |
| CEM | Cetyl-Eicosyl methacrylate mixture | Official | 6 |
| CHC | Charcoal | Official | 26 |
| CDN | Chlordane | Official | 60 |
| CLF | Chlorinated hydrocarbons | Unofficial or invalid | 22 |
| CLH | Chlorinated paraffins (C10-C13) | Official | 7 |
| CLX | Chlorine | Official | 5,701 |
| CTF | Chlorine trifluoride | Official | 2 |
| CHO | Chloroacetaldehyde | Official | 2 |
| MCA | Chloroacetic acid | Official | 19 |
| CRA | Chloroacetophenone | Official | 1 |
| CAC | Chloroacetyl chloride | Official | 4 |
| CAP | p-Chloroaniline | Official | 1 |
| CRB | Chlorobenzene | Official | 98 |
| MCF | Chlorodifluoromethane | Official | 15 |
| CRF | Chloroform | Official | 1,215 |
| CHD | Chlorohydrins | Official | 1 |
| CME | Chloromethyl methyl ether | Official | 17 |
| CNO | o-Chloronitrobenzene | Official | 2 |
| CPN | p-Chlorophenol | Official | 7 |
| CPL | Chloropicrin | Official | 9 |
| CRP | Chloroprene | Official | 138 |
| CSA | Chlorosulfonic acid | Official | 28 |
| CHI | Chlorotoluene | Official | 3 |
| CRN | p-Chlorotoluene | Official | 3 |
| CRT | Chromic acetate | Official | 17 |
| CMA | Chromic anhydride | Official | 200 |
| CHS | Chromic sulfate | Official | 5 |
| CRC | Chromous chloride | Official | 1 |
| CMC | Chromyl chloride | Official | 3 |
| CIT | Citric acid | Official | 27 |
| CTP | Coal tar pitch | Official | 54 |
| CBA | Cobalt acetate | Official | 4 |
| COB | Cobalt bromide (ous) | Official | 3 |
| CBC | Cobalt chloride | Official | 4 |
| COF | Cobalt fluoride | Official | 1 |
| CCO | Cobalt nitrate | Official | 3 |
| CON | Cobalt nitrate (ous) | Unofficial or invalid | 2 |
| COS | Cobalt sulfamate | Official | 3 |
| CBS | Cobalt sulfate | Official | 2 |
| CFA | Coconut oil, fatty acid | Official | 4 |
| OCM | Coconut oil, fatty acid methyl ester | Official | 2 |
| CLD | Collodion | Official | 9 |
| COP | Copper acetate | Official | 12 |
| CAA | Copper acetoarsenite | Official | 2 |
| CPA | Copper arsenite | Official | 9 |
| CBD | Copper bromide (ous) | Official | 1 |
| CPC | Copper chloride | Official | 45 |
| CCY | Copper cyanide (ous) | Official | 23 |
| CNN | Copper naphthenate | Official | 1 |
| CNI | Copper nitrate | Official | 4 |
| CST | Copper subacetate | Official | 1 |
| CSF | Copper sulfate | Official | 119 |
| CSN | Copper sulfate, ammoniated | Official | 3 |
| CSY | Corn syrup | Official | 9 |
| CFY | Cottonseed oil, fatty acid | Official | 4 |
| CCW | Creosote | Unofficial or invalid | 276 |
| CWD | Creosote (wood) | Official | 37 |
| CCT | Creosote, coal tar | Official | 448 |
| CRL | m-Cresol | Official | 7 |
| CRO | o-Cresol | Official | 7 |
| CSO | p-Cresol | Official | 4 |
| CSL | o-Cresol | Unofficial or invalid | 5 |
| CRS | Cresols | Official | 73 |
| CFP | Cresols | Unofficial or invalid | 6 |
| CSC | Cresylate spent caustic solution | Official | 12 |
| CRY | Cresylic acid | Official | 24 |
| CTA | Crotonaldehyde | Official | 3 |
| CHG | Crude hydrocarbon feedstock | Unofficial or invalid | 22 |
| CUM | Cumene | Official | 188 |
| CMH | Cumene hydroperoxide | Official | 51 |
| CES | Cupriethylenediamine solution | Official | 1 |
| CYA | Cyanoacetic acid | Official | 2 |
| CYG | Cyanogen | Official | 2 |
| CBR | Cyanogen bromide | Official | 3 |
| CCL | Cyanogen chloride | Official | 5 |
| CYT | 1,5,9-Cyclododecatriene | Official | 1 |
| CYE | Cycloheptane | Official | 1 |
| CHX | Cyclohexane | Official | 202 |
| CHN | Cyclohexanol | Official | 3 |
| CCH | Cyclohexanone | Official | 29 |
| CYX | Cyclohexanone, cyclohexanol mixture | Official | 1 |
| CYH | Cyclohexene | Unofficial or invalid | 8 |
| CHT | Cyclohexenyltrichlorosilane | Official | 1 |
| CHA | Cyclohexylamine | Official | 66 |
| CPD | 1,3-Cyclopentadiene dimer | Official | 2 |
| CYP | Cyclopentane | Official | 4 |
| CPR | Cyclopropane | Official | 2 |
| CMP | p-Cymene | Official | 9 |
| DES | 2,4-D esters | Official | 5 |
| DDD | DDD | Official | 3 |
| DDT | DDT | Official | 40 |
| DHN | Decahydronaphthalene | Official | 3 |
| DCC | Decane | Official | 3 |
| DCE | 1-Decene | Official | 5 |
| DAN | n-Decyl alcohol | Official | 5 |
| DBZ | n-Decylbenzene | Official | 1 |
| DEP | Di-(2-ethylhexyl)phosphoric acid | Official | 6 |
| DIE | Di-(2-ethylhexyl)phthalate | Official | 1 |
| DBE | Di-n-butyl ether | Official | 1 |
| DBA | Di-n-butylamine | Official | 2 |
| DNA | Di-n-propylamine | Official | 3 |
| DAA | Diacetone alcohol | Official | 3 |
| DAB | Dialkyl (C10 - C14) benzenes | Official | 1 |
| DSZ | Diammonium salt of zinc edta | Official | 1 |
| DZN | Diazinon | Official | 96 |
| DPO | Dibenzoyl peroxide | Official | 1 |
| DBH | Dibromomethane | Official | 4 |
| DPA | Dibutyl phthalate | Official | 31 |
| DIC | Dicamba | Official | 6 |
| DTM | 4,4'-Dichloro-alpha-trichloromethyl benzhydrol | Official | 7 |
| DBX | Dichlorobenzene | Official | 23 |
| DBM | m-Dichlorobenzene | Official | 12 |
| DBP | p-Dichlorobenzene | Official | 30 |
| DBO | o-Dichlorobenzene | Official | 36 |
| DCB | Dichlorobutene | Official | 24 |
| DCF | Dichlorodifluoromethane | Official | 86 |
| DCH | 1,1-Dichloroethane | Official | 90 |
| DEE | 2,2-Dichloroethyl ether | Official | 12 |
| DEL | 1,2-Dichloroethylene | Official | 36 |
| DCM | Dichloromethane | Official | 411 |
| DFM | Dichloromonofluoromethane | Official | 53 |
| DCP | 2,4-Dichlorophenol | Official | 5 |
| DCA | 2,4-Dichlorophenoxyacetic acid | Official | 20 |
| DDE | 2,4-Dichlorophenoxyacetic acid, Diethanolamine salt solution | Official | 2 |
| DPP | 1,2-Dichloropropane | Official | 12 |
| DPB | 1,1-Dichloropropane | Official | 6 |
| DPC | 1,3-Dichloropropane | Official | 5 |
| DPU | 1,3-Dichloropropene | Official | 9 |
| DPS | 1,3-Dichloropropene | Official | 2 |
| DPF | 2,3-Dichloropropene | Official | 2 |
| DBF | Dichloropropene | Unofficial or invalid | 2 |
| DTE | Dichlorotetrafluoroethane | Official | 1 |
| DCV | Dichlorvos | Official | 9 |
| DPT | Dicyclopentadiene | Official | 42 |
| DED | Dieldrin | Official | 6 |
| DEA | Diethanolamine | Official | 333 |
| DEK | Diethyl ketone | Official | 1 |
| DPH | Diethyl phthalate | Official | 9 |
| DSU | Diethyl sulfate | Official | 4 |
| DEN | Diethylamine | Official | 45 |
| DEB | Diethylbenzene | Official | 10 |
| DEG | Diethylene glycol | Official | 43 |
| DIG | Diethylene glycol dibutyl ether | Official | 1 |
| DGD | Diethylene glycol dimethyl ether | Official | 2 |
| DME | Diethylene glycol monobutyl ether | Official | 7 |
| DEM | Diethylene glycol monobutyl ether acetate | Official | 20 |
| DGE | Diethylene glycol monoethyl ether | Official | 6 |
| DGM | Diethylene glycol monomethyl ether | Official | 4 |
| DET | Diethylenetriamine | Official | 13 |
| DFE | 1,1-Difluoroethane | Official | 3 |
| DHP | Diheptyl phthalate | Official | 1 |
| DIK | Diisobutyl ketone | Official | 2 |
| DBU | Diisobutylamine | Official | 1 |
| DBL | Diisobutylene | Official | 7 |
| DID | Diisodecyl phthalate | Official | 2 |
| DIN | Diisononyl phthalate | Official | 1 |
| DIP | Diisopropanolamine | Official | 1 |
| DIA | Diisopropylamine | Official | 1 |
| DIX | Diisopropylbenzene (all isomers) | Official | 3 |
| DIM | Dimethyl ether | Official | 34 |
| DPI | Dimethyl hydrogen phosphite | Official | 1 |
| DTL | Dimethyl phthalate | Official | 4 |
| DSF | Dimethyl sulfate | Official | 13 |
| DSL | Dimethyl sulfide | Official | 116 |
| DMS | Dimethyl sulfoxide | Official | 20 |
| DMT | Dimethyl terephthalate | Official | 7 |
| DAC | Dimethylacetamide | Official | 4 |
| DMA | Dimethylamine | Official | 47 |
| DSX | Dimethylamine salt of 2,4-D solution | Unofficial or invalid | 2 |
| DMD | Dimethyldichlorosilane | Official | 26 |
| DMB | Dimethylethanolamine | Official | 2 |
| DMF | Dimethylformamide | Official | 140 |
| DDW | Dimethylhexane dihydroperoxide | Official | 1 |
| DMH | 1,1-Dimethylhydrazine | Official | 7 |
| DMP | Dimethylpolysiloxane | Official | 6 |
| DDI | 2,2-Dimethylpropane-1,3-diol | Official | 1 |
| DNT | 2,4-Dinitroaniline | Official | 2 |
| DNZ | p-Dinitrobenzene | Official | 2 |
| DNB | m-Dinitrobenzene | Official | 1 |
| DNC | Dinitrocresol | Official | 8 |
| DNP | 2,4-Dinitrophenol | Official | 2 |
| DNU | 3,4-Dinitrotoluene | Official | 3 |
| DTT | 2,4-Dinitrotoluene | Official | 20 |
| DNL | 2,6-Dinitrotoluene | Official | 14 |
| DNM | Dinitrotoluene | Official | 16 |
| DOA | Dioctyl adipate | Official | 2 |
| DOP | Dioctyl phthalate | Official | 22 |
| DSS | Dioctyl sodium sulfosuccinate | Official | 1 |
| DOX | 1,4-Dioxane | Official | 55 |
| DPN | Dipentene | Official | 9 |
| DIL | Diphenyl | Official | 23 |
| DPE | Diphenyl ether | Official | 10 |
| DOB | Diphenyl ether, Diphenyl phenyl ether mixture | Official | 48 |
| DDO | Diphenyl, Diphenyl ether mixture | Official | 5 |
| DAM | Diphenylamine | Official | 2 |
| DPM | Diphenylmethane diisocyanate | Official | 67 |
| DPR | Diphenylol propane-Epichlorohydrin resins | Official | 3 |
| DPG | Dipropylene glycol | Official | 4 |
| DPY | Dipropylene glycol methyl ether | Official | 6 |
| DIQ | Diquat | Official | 1 |
| DSR | Distillates: straight run | Official | 20 |
| DFF | Distillates: flashed feed stocks | Official | 9 |
| DIS | Disulfoton | Official | 3 |
| DTP | Ditridecyl phthalate | Official | 1 |
| DIU | Diuron | Official | 8 |
| DOD | Dodecene | Official | 1 |
| DDC | 1-Dodecene | Official | 1 |
| DAS | Dodecyl benzene sulfonic acid, sodium salt | Official | 1 |
| DDB | Dodecylbenzene | Official | 3 |
| DSA | Dodecylbenzenesulfonic acid | Official | 12 |
| DCS | Dodecylbenzenesulfonic acid, calcium salt | Official | 2 |
| DDM | Dodecylmethacrylate | Official | 1 |
| DTH | Dowtherm | Official | 95 |
| DZB | Drilling brine (containing Zinc salts) | Official | 34 |
| DRM | Drilling mud (low toxicity) | Unofficial or invalid | 129 |
| DUR | Dursban | Official | 45 |
| ESF | Endosulfan | Official | 11 |
| EDR | Endrin | Official | 1 |
| EPC | Epichlorohydrin | Official | 66 |
| EVO | Epoxidized vegetable oils | Official | 40 |
| ETH | Ethane | Official | 149 |
| ETO | Ethion | Official | 7 |
| ETG | Ethoxy triglycol | Official | 3 |
| ENP | Ethoxylated nonylphenol | Official | 1 |
| ETA | Ethyl acetate | Official | 112 |
| EAA | Ethyl acetoacetate | Official | 3 |
| EAC | Ethyl acrylate | Official | 114 |
| EAL | Ethyl alcohol | Official | 353 |
| EAK | Ethyl amyl ketone | Official | 1 |
| EBT | Ethyl butanol | Official | 8 |
| EBR | Ethyl butyrate | Official | 3 |
| ECL | Ethyl chloride | Official | 211 |
| ECA | Ethyl chloroacetate | Official | 2 |
| ECF | Ethyl chloroformate | Official | 1 |
| ECY | Ethyl cyclohexane | Official | 1 |
| EET | Ethyl ether | Official | 88 |
| EHX | 2-Ethyl hexanol | Official | 26 |
| EHE | Ethyl hexyl phthalate | Official | 9 |
| EHT | Ethyl hexyl tallate | Official | 5 |
| ELT | Ethyl lactate | Official | 3 |
| EMC | Ethyl mercaptan | Official | 27 |
| ETM | Ethyl methacrylate | Official | 9 |
| ETN | Ethyl nitrite | Official | 1 |
| EPD | Ethyl phosphonothioic dichloride | Official | 1 |
| ESC | Ethyl silicate | Official | 3 |
| ETE | 2-Ethyl toluene | Official | 5 |
| EAD | Ethylaluminum dichloride | Official | 1 |
| EAM | Ethylamine | Official | 15 |
| ETB | Ethylbenzene | Official | 120 |
| ECS | Ethyldichlorosilane | Official | 1 |
| ETL | Ethylene | Official | 728 |
| ECH | Ethylene chlorohydrin | Official | 7 |
| ETC | Ethylene cyanohydrin | Official | 1 |
| EDB | Ethylene dibromide | Official | 28 |
| EDC | Ethylene dichloride | Official | 866 |
| EGL | Ethylene glycol | Official | 6,714 |
| EGY | Ethylene glycol diacetate | Official | 4 |
| EEE | Ethylene glycol diethyl ether | Official | 14 |
| EGD | Ethylene glycol dimethyl ether | Official | 2 |
| EGI | Ethylene glycol isopropyl ether | Official | 1 |
| EGM | Ethylene glycol monobutyl ether | Official | 26 |
| EMA | Ethylene glycol monobutyl ether acetate | Official | 3 |
| EGE | Ethylene glycol monoethyl ether | Official | 23 |
| EGA | Ethylene glycol monoethyl ether acetate | Official | 10 |
| EME | Ethylene glycol monomethyl ether | Official | 12 |
| EDX | Ethylene glycol phenyl ether, Diethylene glycol phenyl ether mixture | Official | 5 |
| EGP | Ethylene glycol propyl ether | Official | 1 |
| EOX | Ethylene oxide | Official | 1,686 |
| EPM | Ethylene oxide, Propylene oxide mixture | Official | 25 |
| EDA | Ethylenediamine | Official | 32 |
| EMX | Ethylenediamine | Official | 7 |
| EDT | Ethylenediamine tetracetic acid | Official | 3 |
| ETI | Ethyleneimine | Official | 1 |
| EHA | Ethylhexaldehyde | Official | 3 |
| EHO | 2-Ethylhexanoic acid | Official | 3 |
| EAI | 2-Ethylhexyl acrylate | Official | 10 |
| ENB | Ethylidene norbornene | Official | 11 |
| ETS | Ethyltrichlorosilane | Official | 1 |
| FAT | Fatty alcohols (C12-C20) | Unofficial or invalid | 4 |
| FCL | Ferric chloride | Official | 236 |
| FCS | Ferric chloride solution | Official | 39 |
| FFX | Ferric fluoride | Official | 1 |
| FNT | Ferric nitrate | Official | 5 |
| FNN | Ferric nitrate, Nitric acid solution | Official | 3 |
| FSF | Ferric sulfate | Official | 52 |
| FEC | Ferrous chloride | Official | 126 |
| FRS | Ferrous sulfate | Official | 64 |
| FRT | Fertilizer | Unofficial or invalid | 17 |
| FSO | Fish solubles (water based fish meal extracts) | Official | 1 |
| FXX | Fluorine | Official | 19 |
| FLA | 4-Fluoroaniline | Official | 1 |
| FSL | Fluosilicic acid | Official | 23 |
| FSA | Fluosulfonic acid | Official | 5 |
| FMS | Formaldehyde solution | Official | 594 |
| MTM | Formaldehyde, Methanol mixtures | Official | 110 |
| FAM | Formamide | Official | 8 |
| FMA | Formic acid | Official | 34 |
| FUM | Fumaric acid | Official | 1 |
| FUR | Furan | Official | 4 |
| FFA | Furfural | Official | 38 |
| FAL | Furfuryl alcohol | Official | 3 |
| GOC | Gas oil: cracked | Official | 80 |
| OLL | Gas, low sulfur: lanolin | Official | 1 |
| OOI | Gas, low sulfur: oiticica | Official | 1 |
| OGS | Gasoline | Unofficial or invalid | 31 |
| OGA | Gasoline | Unofficial or invalid | 3,390 |
| GAK | Gasoline blending stocks: alkylates | Official | 6 |
| GRF | Gasoline blending stocks: reformates | Official | 11 |
| GAR | Gasoline: aromatic | Unofficial or invalid | 6 |
| GAS | Gasoline: automotive (unleaded) | Unofficial or invalid | 8,585 |
| GPY | Gasoline: pyrolysis (>5% benzene) | Unofficial or invalid | 6 |
| GAT | Gasolines: automotive (<4.23g lead/gal) | Official | 8,459 |
| GAV | Gasolines: aviation (< 4.86g lead/gal) | Official | 93 |
| GCS | Gasolines: casinghead | Official | 49 |
| GSR | Gasolines: straight run | Official | 10 |
| GTA | Glutaraldehyde solution | Official | 8 |
| GCR | Glycerine | Official | 7 |
| GCM | Glycidyl methacrylate | Official | 3 |
| GOS | Glyoxal | Official | 1 |
| HTC | Heptachlor | Official | 8 |
| HPT | Heptane | Official | 114 |
| HEP | Heptanoic acid | Official | 2 |
| HTE | 1-Heptene | Official | 3 |
| HPE | Heptyl acetate | Official | 1 |
| HCZ | Hexachlorobenzene | Official | 26 |
| HCB | Hexachlorobutadiene | Official | 50 |
| HCC | Hexachlorocyclopentadiene | Official | 17 |
| HCE | Hexachloroethane | Official | 22 |
| HMD | Hexamethylenediamine | Official | 32 |
| HMC | Hexamethylenediamine solution | Official | 5 |
| HMT | Hexamethylenetetramine | Official | 1 |
| HMI | Hexamethylenimine | Official | 5 |
| HXA | n-Hexane | Official | 1,159 |
| HXO | Hexanoic acid | Official | 1 |
| HXN | 1-Hexanol | Official | 6 |
| HXE | 1-Hexene | Official | 34 |
| HEX | Hexene | Official | 99 |
| HXG | Hexylene glycol | Official | 5 |
| OHY | Hydraulic oil | Unofficial or invalid | 12,988 |
| HDZ | Hydrazine | Official | 287 |
| HCL | Hydrochloric acid | Official | 2,873 |
| HCS | Hydrochloric acid, spent | Unofficial or invalid | 39 |
| HFA | Hydrofluoric acid | Official | 418 |
| HFS | Hydrofluorosilicic acid (25% or less) | Official | 27 |
| HXX | Hydrogen | Official | 40 |
| HBR | Hydrogen bromide | Official | 15 |
| HDC | Hydrogen chloride | Official | 409 |
| HCN | Hydrogen cyanide | Official | 450 |
| HFX | Hydrogen fluoride | Official | 427 |
| HPO | Hydrogen peroxide | Official | 222 |
| HPS | Hydrogen peroxide solution (>60%) | Unofficial or invalid | 15 |
| HPN | Hydrogen peroxide solution (>8%) | Unofficial or invalid | 22 |
| HDS | Hydrogen sulfide | Official | 4,629 |
| HDQ | Hydroquinone | Official | 40 |
| HBA | 2-Hydroxy-4-(methylthio)-butanoic acid | Official | 2 |
| HAI | 2-Hydroxyethyl acrylate | Official | 5 |
| HDA | Hydroxylamine | Official | 1 |
| HAS | Hydroxylamine sulfate | Official | 3 |
| HPA | Hydroxypropyl acrylate | Official | 1 |
| HPM | Hydroxypropyl methacrylate | Official | 2 |
| IAA | Isoamyl alcohol | Official | 1 |
| IBT | Isobutane | Official | 101 |
| IBA | Isobutyl acetate | Official | 17 |
| IAL | Isobutyl alcohol | Official | 31 |
| BIB | Isobutyl isobutyrate | Official | 2 |
| BMI | Isobutyl methacrylate | Official | 1 |
| IBL | Isobutylene | Official | 27 |
| TMP | 1-Isobutyrate | Official | 8 |
| IBR | Isobutyric acid | Official | 5 |
| IBN | Isobutyronitrile | Official | 4 |
| ISA | Isodecyl alcohol | Official | 2 |
| IHA | Isohexane | Official | 2 |
| IOO | Isooctane | Unofficial or invalid | 31 |
| IOA | Isooctyl alcohol | Official | 3 |
| IPT | Isopentane | Official | 24 |
| IPH | Isophorone | Official | 10 |
| IPI | Isophorone diamine | Official | 1 |
| IPD | Isophorone diisocyanate | Official | 1 |
| IPL | Isophthalic acid | Official | 4 |
| IPR | Isoprene | Official | 110 |
| IAC | Isopropyl acetate | Official | 38 |
| IPA | Isopropyl alcohol | Official | 215 |
| IPE | Isopropyl ether | Official | 16 |
| IPM | Isopropyl mercaptan | Official | 2 |
| ISP | o-Isopropyl phenol | Official | 1 |
| IPP | Isopropylamine | Official | 20 |
| IVA | Isovaleraldehyde | Official | 1 |
| JPA | Jet fuel A | Unofficial or invalid | 50 |
| JPO | Jet fuels: JP-1 | Official | 468 |
| JPT | Jet fuels: JP-3 | Official | 26 |
| JPF | Jet fuels: JP-4 | Official | 1,154 |
| JPV | Jet fuels: JP-5 | Official | 2,261 |
| JPE | Jet fuels: JP-8 | Official | 1,542 |
| KRS | Kerosene | Official | 1,273 |
| KPL | Kraft pulping liquors (Black, Green, or White) | Official | 3 |
| LTA | Lactic acid | Official | 6 |
| LNI | Lactonitrile solution (80% or less) | Official | 1 |
| LLS | Latex, liquid synthetic | Official | 56 |
| LRA | Lauric acid | Official | 2 |
| LRM | Lauryl mercaptan | Official | 1 |
| LAC | Lead acetate | Official | 39 |
| MFA | Lead alkyls | Official | 1 |
| LAR | Lead arsenate | Official | 5 |
| LCL | Lead chloride | Official | 1 |
| LFR | Lead fluoride | Official | 1 |
| LFB | Lead fluoroborate | Official | 3 |
| LID | Lead iodide | Official | 3 |
| LNT | Lead nitrate | Official | 3 |
| LSA | Lead stearate | Official | 1 |
| LSF | Lead sulfate | Official | 24 |
| LSU | Lead sulfide | Official | 35 |
| LAL | Linear alcohols | Official | 1 |
| LNG | Liquefied natural gas | Official | 95 |
| LPG | Liquefied petroleum gas | Official | 465 |
| LTH | Litharge | Official | 30 |
| LTM | Lithium | Official | 13 |
| LAH | Lithium aluminum hydride | Official | 2 |
| LCR | Lithium chromate | Official | 1 |
| LHD | Lithium hydride | Official | 2 |
| LOB | Lube oil | Unofficial or invalid | 2 |
| MGX | Magnesium | Official | 37 |
| MSE | Magnesium sulfonate | Official | 2 |
| MLT | Malathion | Official | 112 |
| MLI | Maleic acid | Official | 5 |
| MLA | Maleic anhydride | Official | 35 |
| MLH | Maleic hydrazide | Official | 1 |
| MAR | Marine waste | Unofficial or invalid | 965 |
| MAT | Mercuric acetate | Official | 3 |
| MCC | Mercuric ammonium chloride | Official | 1 |
| MRC | Mercuric chloride | Official | 10 |
| MCN | Mercuric cyanide | Official | 3 |
| MID | Mercuric iodide | Official | 1 |
| MNT | Mercuric nitrate | Official | 2 |
| MRS | Mercuric sulfate | Official | 1 |
| MRT | Mercuric thiocyanate | Official | 1 |
| MRN | Mercurous nitrate | Official | 1 |
| MCR | Mercury | Official | 1,480 |
| MSO | Mesityl oxide | Official | 3 |
| MSS | Metam sodium solution | Official | 8 |
| MAD | Methacrylic acid | Official | 14 |
| MET | Methacrylonitrile | Official | 4 |
| MCL | Methallyl chloride | Official | 81 |
| MTH | Methane | Official | 210 |
| MSA | Methanearsonic acid, sodium salt | Official | 2 |
| MOC | Methoxychlor | Official | 15 |
| MTT | Methyl acetate | Official | 24 |
| MAE | Methyl acetoacetate | Official | 2 |
| MAP | Methyl acetylene, propadiene mixture | Official | 4 |
| MAM | Methyl acrylate | Official | 46 |
| MAL | Methyl alcohol | Official | 666 |
| MAC | Methyl amyl acetate | Official | 2 |
| MAA | Methyl amyl alcohol | Official | 7 |
| MBZ | Methyl benzoate | Official | 2 |
| MTB | Methyl bromide | Official | 28 |
| MBL | Methyl butenol | Official | 1 |
| MBU | Methyl butyrate | Official | 1 |
| MTC | Methyl chloride | Official | 1,168 |
| MCH | Methyl chloroformate | Unofficial or invalid | 5 |
| MCP | Methyl cyclopentane | Official | 6 |
| MDC | Methyl dichloroacetate | Official | 1 |
| MDE | Methyl diethanolamine | Official | 3 |
| MEK | Methyl ethyl ketone | Official | 399 |
| MTF | Methyl formal | Official | 5 |
| MFM | Methyl formate | Official | 7 |
| MIO | Methyl iodide | Official | 15 |
| MIC | Methyl isobutyl carbinol | Official | 6 |
| MIK | Methyl isobutyl ketone | Official | 79 |
| MIS | Methyl isocyanate | Official | 5,030 |
| MPK | Methyl isopropenyl ketone | Official | 1 |
| MIT | Methyl isothiocyanate | Official | 4 |
| MMC | Methyl mercaptan | Official | 501 |
| MMM | Methyl methacrylate | Official | 179 |
| MBK | Methyl n-butyl ketone | Official | 3 |
| MPT | Methyl parathion | Official | 18 |
| MES | Methyl salicylate | Official | 1 |
| MBE | Methyl tert-butyl ether | Official | 136 |
| MVK | Methyl vinyl ketone | Official | 2 |
| MPE | 2-Methyl-1-pentene | Official | 2 |
| MPN | 2-Methyl-1-pentene | Official | 1 |
| MTA | Methylamine | Official | 25 |
| MSZ | Methylamine solution | Official | 1 |
| MAK | Methylamyl ketone | Official | 4 |
| MBA | a-Methylbenzyl alcohol | Official | 3 |
| MCY | Methylcyclohexane | Official | 1 |
| MCT | Methylcyclopentadienylmanganese tricarbonyl | Official | 10 |
| MCS | Methyldichlorosilane | Official | 2 |
| MDB | 4,4'Methylene dianiline | Unofficial or invalid | 11 |
| MEP | Methylethylpyridine | Official | 1 |
| MHZ | Methylhydrazine | Official | 8 |
| MNA | 1-Methylnaphthalene | Official | 2 |
| MLP | 3-Methylpyridine | Official | 1 |
| MPR | 2-Methylpyridine | Official | 6 |
| MPF | 4-Methylpyridine | Official | 1 |
| MPY | 1-Methylpyrrolidone | Official | 12 |
| MSR | alpha-Methylstyrene | Official | 8 |
| MTS | Methyltrichlorosilane | Official | 20 |
| MCO | Metolachlor | Official | 1 |
| MNS | Mineral spirits | Official | 526 |
| MWS | Mixed/waste solvents | Unofficial or invalid | 72 |
| MTO | Molybdic trioxide | Official | 1 |
| MEA | Monoethanolamine | Official | 53 |
| MPA | Monoisopropanolamine | Official | 6 |
| MME | Monomethyl ethanolamine | Official | 1 |
| MPL | Morpholine | Official | 14 |
| MUL | Multiple materials | Unofficial or invalid | 2,049 |
| MRE | Myrcene | Official | 1 |
| DAE | N,N-Diethylethanolamine | Official | 22 |
| DCR | N,N-Dimethylcarbamoyl chloride | Official | 1 |
| DXN | N,n-Dimethylcyclohexylamine | Official | 2 |
| AEP | N-Aminoethyl piperazine | Official | 2 |
| ECC | N-Ethylcyclohexylamine | Official | 1 |
| MAN | N-methylaniline | Official | 4 |
| NLD | Naled | Official | 1 |
| NVM | Naphtha: VM & P | Official | 99 |
| NCT | Naphtha: coal tar | Official | 200 |
| NSV | Naphtha: solvent | Official | 303 |
| NSS | Naphtha: stoddard solvent | Official | 32 |
| NTM | Naphthalene | Official | 207 |
| NFS | Naphthalene sulfonic acid-formaldehyde copolymer, sodium salt solution | Official | 1 |
| NTS | Naphthenic acid, sodium salt solution | Official | 1 |
| NTI | Naphthenic acids | Official | 2 |
| NAO | 1-Naphthylamine | Official | 2 |
| ONG | Natural gas | Unofficial or invalid | 10,506 |
| NEA | Neodecanoic acid | Official | 1 |
| NHX | Neohexane | Official | 1 |
| NKA | Nickel acetate | Official | 7 |
| NAS | Nickel ammonium sulfate | Official | 1 |
| NBR | Nickel bromide | Official | 1 |
| NKC | Nickel carbonyl | Official | 1 |
| NCL | Nickel chloride | Official | 11 |
| NCN | Nickel cyanide | Official | 1 |
| NFM | Nickel formate | Official | 1 |
| NKH | Nickel hydroxide | Official | 13 |
| NNT | Nickel nitrate | Official | 7 |
| NKS | Nickel sulfate | Official | 32 |
| NCS | Nicotine sulfate | Official | 4 |
| NIA | Nitrating acid | Official | 6 |
| NAC | Nitric acid | Official | 681 |
| NCD | Nitric acid (70% or less) | Official | 89 |
| NTX | Nitric oxide | Official | 2,287 |
| NAA | Nitrilotriacetic acid and salts | Official | 1 |
| NTA | 2-Nitroaniline | Official | 1 |
| NTB | Nitrobenzene | Official | 10 |
| NTE | Nitroethane | Official | 2 |
| NXX | Nitrogen | Official | 210 |
| NOX | Nitrogen tetroxide | Official | 1,224 |
| NMT | Nitromethane | Official | 20 |
| NPH | 4-Nitrophenol | Official | 1 |
| NIP | 3-Nitrophenol | Official | 1 |
| NTP | 2-Nitrophenol | Official | 1 |
| NPP | 2-Nitropropane | Official | 12 |
| NPN | 1-Nitropropane | Official | 1 |
| NPM | Nitropropane | Official | 2 |
| NTC | Nitrosyl chloride | Official | 2 |
| NIT | Nitrotoluene | Official | 2 |
| NTT | p-Nitrotoluene | Official | 1 |
| NTR | m-Nitrotoluene | Official | 2 |
| NTO | Nitrous oxide | Official | 588 |
| NAN | Nonane | Official | 8 |
| NNA | Nonanoic acid | Official | 1 |
| NNN | Nonanol | Official | 2 |
| NON | Nonene | Official | 27 |
| NNE | 1-Nonene | Official | 2 |
| NNP | Nonylphenol | Official | 3 |
| OAN | Octane | Official | 14 |
| OAA | Octanoic acid | Official | 1 |
| OAY | Octanoic acid | Official | 1 |
| OTA | Octanol | Official | 6 |
| OTX | Octene | Official | 2 |
| OTE | 1-Octene | Official | 4 |
| ODA | Octyl decyl adipate | Official | 17 |
| OET | Octyl epoxy tallate | Official | 1 |
| OPI | Oil, misc: pine | Official | 11 |
| OCA | Oils, edible: castor | Official | 10 |
| OCC | Oils, edible: coconut | Official | 17 |
| OCO | Oils, edible: corn | Official | 37 |
| OCS | Oils, edible: cottonseed | Official | 7 |
| OFS | Oils, edible: fish | Official | 31 |
| OGN | Oils, edible: groundnut | Official | 2 |
| OLD | Oils, edible: lard | Official | 42 |
| OOL | Oils, edible: olive | Official | 3 |
| OPM | Oils, edible: palm | Official | 10 |
| OPN | Oils, edible: peanut | Official | 12 |
| ORP | Oils, edible: rapeseed | Official | 2 |
| OSF | Oils, edible: safflower | Official | 5 |
| OSB | Oils, edible: soya bean | Official | 146 |
| OSN | Oils, edible: sunflower seed | Official | 3 |
| OVG | Oils, edible: vegetable | Official | 264 |
| OOD | Oils, fuel: 1-D | Official | 314 |
| OTW | Oils, fuel: 2 | Official | 10,261 |
| OTD | Oils, fuel: 2-D | Official | 16,286 |
| OFR | Oils, fuel: 4 | Official | 303 |
| OFV | Oils, fuel: 5 | Official | 124 |
| OON | Oils, fuel: no. 1 | Official | 232 |
| OSX | Oils, fuel: no. 6 | Official | 4,817 |
| OAS | Oils, miscellaneous: absorption | Official | 4 |
| OCT | Oils, miscellaneous: coal tar | Official | 187 |
| OCR | Oils, miscellaneous: croton | Official | 2 |
| OLS | Oils, miscellaneous: linseed | Official | 11 |
| OLB | Oils, miscellaneous: lubricating | Official | 8,781 |
| OMN | Oils, miscellaneous: mineral | Official | 2,817 |
| OMS | Oils, miscellaneous: mineral seal | Official | 86 |
| OMT | Oils, miscellaneous: motor | Official | 8,687 |
| ONF | Oils, miscellaneous: neatsfoot | Official | 2 |
| OPT | Oils, miscellaneous: penetrating | Official | 7 |
| ORG | Oils, miscellaneous: range | Official | 1 |
| ORS | Oils, miscellaneous: resin | Official | 39 |
| ORD | Oils, miscellaneous: road | Official | 23 |
| ORN | Oils, miscellaneous: rosin | Official | 3 |
| OSD | Oils, miscellaneous: spindle | Official | 4 |
| OTL | Oils, miscellaneous: tall | Official | 5 |
| OTN | Oils, miscellaneous: tanner's | Official | 1 |
| OTF | Oils, miscellaneous: transformer | Official | 6,520 |
| OTB | Oils, miscellaneous: turbine | Official | 197 |
| OCF | Oils: clarified | Official | 5 |
| OIL | Oils: crude | Official | 55,486 |
| ODS | Oils: diesel | Official | 38,538 |
| OAM | alpha-Olefins (C6 - C18) mixtures | Official | 8 |
| OLA | Oleic acid | Official | 2 |
| OAC | Oleic acid, sodium salt | Official | 1 |
| OLM | Oleum | Official | 91 |
| OTH | Other oil | Unofficial or invalid | 17,262 |
| OXA | Oxalic acid | Official | 4 |
| OXY | Oxygen | Official | 55 |
| PBC | PCB | Unofficial or invalid | 3 |
| PNO | Palm kernel acid oil | Official | 1 |
| OPE | Palm oil, fatty acid methyl ester | Official | 5 |
| PFN | n-Paraffins (C10 - C20) | Official | 2 |
| PFA | Paraformaldehyde | Official | 10 |
| PTO | Parathion | Official | 25 |
| PTB | Pentaborane | Official | 3 |
| PCE | Pentachloroethane | Official | 15 |
| PCP | Pentachlorophenol | Official | 118 |
| PDI | 1,3-Pentadiene | Unofficial or invalid | 14 |
| PDN | 1,4-Pentadiene | Official | 2 |
| PDE | 1,3-Pentadiene | Official | 7 |
| PET | Pentaerythritol | Official | 1 |
| PTY | Pentane | Official | 27 |
| PTA | Pentane | Official | 26 |
| PTX | Pentene | Official | 7 |
| PTE | 1-Pentene | Official | 6 |
| PAA | Peracetic acid | Official | 10 |
| PCL | Perchloric acid | Official | 10 |
| PER | Perchloroethylene | Official | 426 |
| PCM | Perchloromethyl mercaptan | Official | 3 |
| PTL | Petrolatum | Official | 14 |
| PTN | Petroleum naphtha | Official | 290 |
| PHN | Phenol | Official | 355 |
| PHO | Phenolated oil | Unofficial or invalid | 2 |
| PHE | Phenylhydrazine | Official | 1 |
| PMA | Phenylmercuric acetate | Official | 1 |
| PHD | Phosdrin | Official | 5 |
| PHG | Phosgene | Official | 91 |
| PAC | Phosphoric acid | Official | 947 |
| PPO | Phosphorus oxychloride | Official | 22 |
| PPP | Phosphorus pentasulfide | Official | 18 |
| PPT | Phosphorus trichloride | Official | 35 |
| PPB | Phosphorus, black | Official | 29 |
| PPR | Phosphorus, red | Official | 23 |
| PPW | Phosphorus, white | Official | 150 |
| PAN | Phthalic anhydride | Official | 57 |
| PNL | Pine oil | Official | 1 |
| PPZ | Piperazine | Official | 3 |
| PSM | Poly(20)oxyethylene sorbitan monooleate | Official | 1 |
| PPX | Polyalkylene glycols, polyalkylene glycol monoalkyl ethers mixtures | Official | 3 |
| PAO | Polyalkylene oxide polyol | Official | 3 |
| PLB | Polybutene | Official | 4 |
| PCB | Polychlorinated biphenyl | Official | 9,276 |
| PEE | Polyethylene glycol monoalkyl ether | Official | 6 |
| PEB | Polyethylene polyamines | Official | 5 |
| PSS | Polyferric sulfate solution | Official | 2 |
| PPI | Polymethylene polyphenyl isocyanate | Official | 5 |
| PPA | Polyphosphoric acid | Official | 20 |
| PLP | Polypropylene | Official | 32 |
| PGC | Polypropylene glycol | Official | 32 |
| PGM | Polypropylene glycol methyl ether | Official | 3 |
| PTM | Potassium | Official | 20 |
| PAS | Potassium arsenate | Official | 2 |
| PCR | Potassium chlorate | Official | 5 |
| PCS | Potassium chloride solution | Official | 1 |
| PCH | Potassium chromate | Official | 6 |
| PTC | Potassium cyanide | Official | 128 |
| PTD | Potassium dichromate | Official | 14 |
| PTH | Potassium hydroxide | Official | 238 |
| PTI | Potassium iodide | Official | 2 |
| PTS | Potassium oxalate | Official | 1 |
| PTP | Potassium permanganate | Official | 46 |
| PRP | Propane | Official | 1,311 |
| PRG | Propargite | Official | 3 |
| PRO | Propargyl alcohol | Official | 2 |
| PAD | Propionaldehyde | Official | 67 |
| PNA | Propionic acid | Official | 35 |
| PAH | Propionic anhydride | Official | 1 |
| PCN | Propionitrile | Official | 11 |
| PAT | n-Propyl acetate | Official | 20 |
| PAL | n-Propyl alcohol | Official | 15 |
| PMN | n-Propyl mercaptan | Official | 1 |
| PRA | n-Propylamine | Official | 2 |
| PPL | Propylene | Official | 410 |
| PPG | Propylene glycol | Official | 88 |
| PME | Propylene glycol methyl ether | Official | 4 |
| POX | Propylene oxide | Official | 374 |
| PTT | Propylene tetramer | Official | 6 |
| PII | Propyleneimine | Official | 5 |
| PRR | Pyrethrins | Official | 10 |
| PRD | Pyridine | Official | 35 |
| PRF | Pyrolysis residual fuels | Unofficial or invalid | 3 |
| RAM | Radioactive material | Unofficial or invalid | 1,437 |
| RAD | Radioactive wastes | Unofficial or invalid | 6 |
| RFG | Refrigerant gases | Unofficial or invalid | 450 |
| RSC | Resorcinol | Official | 2 |
| SLA | Salicylic acid | Official | 1 |
| SLD | Selenium dioxide | Official | 70 |
| STO | Selenium trioxide | Official | 6 |
| STC | Silicon tetrachloride | Official | 19 |
| SVA | Silver acetate | Official | 1 |
| SVN | Silver nitrate | Official | 19 |
| SDU | Sodium | Official | 10 |
| SAN | Sodium acetate solution | Official | 3 |
| SAB | Sodium alkylbenzenesulfonates | Official | 2 |
| SAU | Sodium aluminate solution (45% or less) | Official | 14 |
| SAM | Sodium amide | Official | 1 |
| SDA | Sodium arsenate | Official | 2 |
| SAR | Sodium arsenite | Official | 1 |
| SAZ | Sodium azide | Official | 13 |
| SBN | Sodium benzoate solution | Official | 1 |
| SBF | Sodium bifluoride | Official | 1 |
| SBS | Sodium bisulfite | Official | 37 |
| SDB | Sodium borate | Official | 2 |
| SBH | Sodium borohydride | Official | 3 |
| SCE | Sodium carbonate solutions | Official | 6 |
| SDC | Sodium chlorate | Official | 58 |
| SDD | Sodium chlorate solution | Official | 3 |
| SCH | Sodium chromate | Official | 56 |
| SCN | Sodium cyanide | Official | 192 |
| SCS | Sodium cyanide solution | Official | 37 |
| SDT | Sodium dichloro-s-triazinetrione | Official | 7 |
| SCR | Sodium dichromate | Official | 74 |
| SDL | Sodium dichromate solution | Official | 5 |
| SFC | Sodium ferrocyanide | Official | 1 |
| SDF | Sodium fluoride | Official | 13 |
| SDH | Sodium hydride | Official | 37 |
| SSS | Sodium hydrogen sulfide, Sodium carbonate solution | Official | 1 |
| SHX | Sodium hydrogen sulfite solution (35% or less) | Official | 2 |
| SHS | Sodium hydrosulfide solution | Unofficial or invalid | 43 |
| SHR | Sodium hydrosulfide solution | Official | 30 |
| SSA | Sodium hydrosulfide, Ammonium sulfide solution | Official | 1 |
| SHD | Sodium hydroxide | Official | 2,165 |
| SHC | Sodium hypochlorite | Official | 667 |
| SHP | Sodium hypochlorite solution | Official | 280 |
| SML | Sodium methylate | Official | 7 |
| SNS | Sodium naphthalene sulfonate solution | Official | 1 |
| SDN | Sodium nitrate | Official | 42 |
| SNT | Sodium nitrite | Official | 60 |
| SNI | Sodium nitrite solution | Official | 10 |
| SOX | Sodium oxalate | Official | 1 |
| SPC | Sodium pentachlorophenate | Official | 3 |
| SPP | Sodium phosphate | Official | 10 |
| SPH | Sodium phosphate, tribasic | Official | 3 |
| SSE | Sodium selenite | Official | 1 |
| SSC | Sodium silicate | Official | 28 |
| SSN | Sodium silicate solution | Official | 1 |
| SDS | Sodium sulfide | Official | 33 |
| SSH | Sodium sulfide, hydrosulfide solution | Unofficial or invalid | 2 |
| SSF | Sodium sulfite | Official | 6 |
| SBT | Sorbitol | Official | 1 |
| STF | Stannous flouride | Official | 1 |
| SRA | Stearic acid | Official | 2 |
| SCM | Strontium chromate | Official | 11 |
| STR | Strychnine | Official | 3 |
| STY | Styrene | Official | 786 |
| SRS | Sucrose | Official | 3 |
| SFL | Sulfolane | Official | 2 |
| SXX | Sulfur | Official | 205 |
| SFD | Sulfur dioxide | Official | 6,820 |
| SFM | Sulfur monochloride | Official | 14 |
| SFA | Sulfuric acid | Official | 5,650 |
| SAC | Sulfuric acid, spent | Official | 90 |
| SCL | Sulfuryl chloride | Official | 7 |
| TES | 2,4,5-T esters | Official | 2 |
| TOS | Tall oil soap (disproportionated) solution | Official | 1 |
| TOF | Tall oil, fatty acid | Official | 8 |
| TLO | Tallow | Official | 93 |
| TFD | Tallow fatty acid | Official | 1 |
| TFA | Tallow fatty alcohol | Official | 1 |
| TBT | Tetrabutyl titanate | Official | 1 |
| TEC | Tetrachloroethane | Official | 73 |
| TEO | 1,1,2,2-Tetrachloroethane | Unofficial or invalid | 2 |
| TTE | Tetrachloroethylene | Official | 670 |
| TTN | Tetradecanol | Official | 2 |
| TED | Tetraethyl dithiopyrophosphate | Official | 1 |
| TEL | Tetraethyl lead | Official | 12 |
| TEP | Tetraethyl pyrophosphate | Official | 1 |
| TTG | Tetraethylene glycol | Official | 1 |
| TTP | Tetraethylenepentamine | Official | 2 |
| TFE | Tetrafluoroethylene | Official | 5 |
| THF | Tetrahydrofuran | Official | 120 |
| THN | Tetrahydronaphthalene | Official | 7 |
| TTB | 1,2,3,5-Tetramethylbenzene | Official | 1 |
| THC | Thiocarbamide | Official | 1 |
| THR | Thiram | Official | 18 |
| TRN | Thorium nitrate | Official | 6 |
| TTT | Titanium tetrachloride | Official | 482 |
| TOL | Toluene | Official | 1,502 |
| TDI | Toluene 2,4-diisocyanate | Official | 191 |
| TDD | Toluene diisocyanate, diphenylme | Unofficial or invalid | 43 |
| TDA | Toluenediamine | Official | 35 |
| TAP | p-Toluenesulfonic acid | Official | 2 |
| TOD | p-Toluidine | Official | 4 |
| TOI | m-Toluidine | Official | 1 |
| TLI | o-Toluidine | Official | 10 |
| TXP | Toxaphene | Official | 21 |
| OTG | Transformer: tung | Official | 1 |
| TBP | Tributyl phosphate | Official | 1 |
| TRC | Trichlorfon | Official | 1 |
| TTF | 1,1,2-Trichloro-1,2,2-trifluoroethane | Official | 1 |
| TCT | Trichloro-s-triazinetrione | Official | 12 |
| TCB | 1,2,4-Trichlorobenzene | Official | 13 |
| TBZ | 1,2,3-Trichlorobenzene | Official | 10 |
| TCM | 1,1,2-Trichloroethane | Official | 33 |
| TCE | Trichloroethane | Official | 562 |
| TCL | Trichloroethylene | Official | 366 |
| TCF | Trichlorofluoromethane | Official | 92 |
| TPH | Trichlorophenol | Official | 5 |
| TPA | 2-(2,4,5-Trichlorophenoxy) propanoic acid | Official | 2 |
| TCA | 2,4,5-Trichlorophenoxyacetic acid | Official | 3 |
| TCN | 1,2,3-Trichloropropane | Official | 1 |
| TCS | Trichlorosilane | Official | 9 |
| TCP | Tricresyl phosphate (<1% ortho isomer) | Official | 1 |
| TDN | Tridecanol | Official | 2 |
| TEA | Triethanolamine | Official | 13 |
| TAL | Triethylaluminum | Official | 1 |
| TEN | Triethylamine | Official | 14 |
| TEB | Triethylbenzene | Official | 2 |
| TEG | Triethylene glycol | Official | 97 |
| TGD | Triethylene glycol di-(2-ethylbutyrate) | Official | 1 |
| TGE | Triethylene glycol ethyl ether | Official | 1 |
| TET | Triethylenetetramine | Official | 3 |
| TFC | Trifluorochloroethylene | Official | 2 |
| TFR | Trifluralin | Official | 46 |
| TIP | Triisopropanolamine | Official | 1 |
| TMB | 1,3,5-Trimethyl benzene | Unofficial or invalid | 10 |
| THA | Trimethyl hexamethylene diamine | Official | 3 |
| TPP | Trimethyl phosphite | Official | 4 |
| TMA | Trimethylamine | Official | 28 |
| TRE | Trimethylbenzene | Official | 3 |
| TME | 1,2,4-Trimethylbenzene | Official | 6 |
| TMC | Trimethylchlorosilane | Official | 14 |
| TRO | 1,3,5-Trioxane | Official | 1 |
| TGC | Tripropylene glycol | Official | 2 |
| TGM | Tripropylene glycol methyl ether | Official | 2 |
| TPO | Tris(Aziridinyl) phosphine oxide | Official | 2 |
| TPT | Turpentine | Official | 88 |
| NCC | Unknown / no chris code | Unofficial or invalid | 69,545 |
| UNK | Unknown material | Unofficial or invalid | 22,724 |
| OUN | Unknown oil | Unofficial or invalid | 63,422 |
| URP | Uranium peroxide | Official | 5 |
| URA | Uranyl acetate | Official | 2 |
| UAN | Uranyl nitrate | Official | 8 |
| URE | Urea | Official | 58 |
| UPO | Urea peroxide | Official | 1 |
| UAS | Urea, ammonium nitrate soln (w/aqua ammonia) | Official | 10 |
| VAK | Valeraldehyde | Official | 1 |
| VAL | Valeraldehyde | Official | 1 |
| VOX | Vanadium pentoxide | Official | 4 |
| VBL | Vanillan black liquor | Official | 16 |
| VAM | Vinyl acetate | Official | 259 |
| VCM | Vinyl chloride | Official | 2,486 |
| VCL | Vinyl chloride | Unofficial or invalid | 9 |
| VEE | Vinyl ethyl ether | Official | 2 |
| VFI | Vinyl fluoride | Official | 1 |
| VME | Vinyl methyl ether | Official | 1 |
| VNT | Vinyl toluene | Official | 7 |
| VCI | Vinylidene chloride | Official | 46 |
| VTS | Vinyltrichlorosilane | Official | 2 |
| OWA | Waste oil | Unofficial or invalid | 5,159 |
| WTO | Waste oil/lubricants | Unofficial or invalid | 2,495 |
| WAX | Waxes | Official | 6 |
| WPF | Waxes: paraffin | Official | 25 |
| XLX | Xylene | Official | 573 |
| XLM | m-Xylene | Official | 266 |
| XLP | p-Xylene | Official | 136 |
| XLO | o-Xylene | Official | 145 |
| XYL | Xylenol | Official | 39 |
| ZNA | Zinc acetate | Official | 14 |
| ZAC | Zinc ammonium chloride | Official | 3 |
| ZAR | Zinc arsenate | Official | 1 |
| ZBR | Zinc bromide | Official | 68 |
| ZCL | Zinc chloride | Official | 35 |
| ZCR | Zinc chromate | Official | 15 |
| ZCN | Zinc cyanide | Official | 9 |
| ZDP | Zinc dialkyldithiophosphate | Official | 6 |
| ZNT | Zinc nitrate | Official | 1 |
| ZPP | Zinc phosphide | Official | 4 |
| ZSF | Zinc sulfate | Official | 24 |
| ZCO | Zirconium oxychloride | Official | 2 |
| ZCT | Zirconium tetrachloride | Official | 1 |