| 500 ppm LM diesel fuel | As defined in § 1090.80. |
| ABT | averaging, banking, and trading. |
| ARV | accepted reference value. |
| BOB | gasoline before oxygenate blending. |
| CARB | California Air Resources Board. |
| CFR | Code of Federal Regulations. |
| CG | conventional gasoline. |
| DFE | denatured fuel ethanol. |
| E0 | As defined in § 1090.80. |
| E10 | As defined in § 1090.80. |
| E15 | As defined in § 1090.80. |
| ECA marine fuel | As defined in § 1090.80. |
| EPA | Environmental Protection Agency. |
| GTAB | gasoline treated as blendstock. |
| IMO marine fuel | As defined in § 1090.80. |
| LAC | lowest additive concentration. |
| LLOQ | laboratory limit of quantitation. |
| MARPOL Annex VI | The International Convention for the Prevention of Pollution from Ships, 1973 as modified by the Protocol of 1978 Annex VI. |
| NAAQS | National Ambient Air Quality Standard. |
| NARA | National Archives and Records Administration. |
| NFSP | national fuels survey program. |
| NGL | natural gas liquids. |
| NIST | National Institute for Standards and Technology. |
| NSTOP | national sampling and testing oversight program. |
| PCG | previously certified gasoline. |
| PLOQ | published limit of quantitation. |
| ppm (mg/kg) | parts per million (or milligram per kilogram). |
| PTD | product transfer document. |
| R&D | research and development. |
| RCO | responsible corporate officer. |
| RFG | reformulated gasoline. |
| RFS | Renewable Fuel Standard. |
| RVP | Reid vapor pressure. |
| SIP | state implementation plan. |
| SQC | statistical quality control. |
| T10, T50, T90 | temperatures representing the points in a distillation process where 10, 50, and 90 percent of the sample evaporates, respectively. |
| TDP | transmix distillate product. |
| TGP | transmix gasoline product. |
| U.S | United States. |
| U.S.C | United States Code. |
| ULSD | ultra-low-sulfur diesel fuel. |
| VCSB | voluntary consensus standards body. |