Testing and Measuring Emissions
Test Procedures and Chemistry Methods
Please Note: The Code of Federal Regulations is the official source of vehicle/engine certification test procedures.
| Test Procedures | Chemistry Methods | ||
| Control of Emissions from New and In-use Highway Vehicles and Engines | 40 CFR Part 86 | Measurement of reformulated gasoline fuel parameters. | 40 CFR Part 80 Subpart D §80.46 |
| Test Procedures | 40 CFR Part 87 Subpart G | Measurement methods for benzene and 1,3-butadiene. | 40 CFR Part 80 Subpart D §80.55 |
| Test Procedures | 40 CFR Part 1039 Subpart F | Measurement methods for formaldehyde and acetaldehyde. | 40 CFR Part 80 Subpart D §80.56 |
| Test Procedures | 40 CFR Part 1033 Subpart F | What are the sampling and testing methods for sulfur? | 40 CFR Part 80 Subpart D §80.580 |
| Test Procedures | 40 CFR Part 1033 Subpart E | What are the batch testing and sample retention requirements for motor vehicle diesel fuel, NRLM diesel fuel, and ECA marine fuel? | 40 CFR Part 80 Subpart D §80.581 |
| Test Procedures | 40 CFR Part 89 Subpart E | What are the sampling and testing methods for the fuel marker? | 40 CFR Part 80 Subpart D §80.582 |
| Test Procedures | 40 CFR Part 94 Subpart B | What alternative sampling and testing requirements apply to importers who transport motor vehicle diesel fuel, NRLM diesel fuel, or ECA marine fuel by truck or rail car? | 40 CFR Part 80 Subpart D §80.583 |
| Test Procedures | 40 CFR Part 1042 Subpart F | What are the precision and accuracy criteria for approval of test methods for determining the sulfur content of motor vehicle diesel fuel, NRLM diesel fuel, and ECA marine fuel? | 40 CFR Part 80 Subpart D §80.584 |
| Test Procedures | 40 CFR Part 1045 Subpart F | What is the process for approval of a test method for determining the sulfur content of diesel or ECA marine fuel? | 40 CFR Part 80 Subpart D §80.585 |
| Engine-Testing Procedures | 40 CFR Part 1065 | What are the record retention requirements for test methods approved under this subpart? | 40 CFR Part 80 Subpart D §80.586 |
| Vehicle-Testing Procedures | 40 CFR Part 1066 | ||
| Gaseous Exhaust Test Procedures | 40 CFR Part 90 Subpart E | ||
| Test Procedures | 40 CFR Part 1051 Subpart F | ||
| Test Procedures | 40 CFR Part 1060 Subpart F | ||