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8391 section changes clear filters

Key: Amended Section text was updated Added New section added to the CFR Removed Section no longer in current CFR
Date CFR Section Type
2026-03-14 § 1065.610 — Duty Cycle Generation
40 C.F.R. § 1065.610
Amended
2026-03-14 § 1065.307 — Linearity Verification
40 C.F.R. § 1065.307
Amended
2026-03-14 § 1045.705 — How Do I Generate And Calculate Exhaust Emission Credits?
40 C.F.R. § 1045.705
Amended
2026-03-14 § 1065.655 — Carbon-based Chemical Balances Of Fuel, Def, Intake Air, And Exhaust
40 C.F.R. § 1065.655
Amended
2026-03-14 § 1065.650 — Emission Calculations
40 C.F.R. § 1065.650
Amended
2026-03-14 § 1051.310 — How Must I Select Vehicles Or Engines For Production-line Testing?
40 C.F.R. § 1051.310
Amended
2026-03-14 § 1045.706 — How Do I Generate And Calculate Evaporative Emission Credits?
40 C.F.R. § 1045.706
Amended
2026-03-14 § 1065.643 — Carbon Balance Error Verification Calculations
40 C.F.R. § 1065.643
Amended
2026-03-14 § 1048.805 — What Symbols, Acronyms, And Abbreviations Does This Part Use?
40 C.F.R. § 1048.805
Amended
2026-03-14 § 1048.315 — How Do I Know When My Engine Family Fails The Production-line Testing Requirements?
40 C.F.R. § 1048.315
Amended
2026-03-14 § 1065.642 — Pdp, Ssv, And Cfv Molar Flow Rate Calculations
40 C.F.R. § 1065.642
Amended
2026-03-14 § 1039.104 — Are There Interim Provisions That Apply Only For A Limited Time?
40 C.F.R. § 1039.104
Amended
2026-03-14 § 1037.705 — Generating And Calculating Co2 Emission Credits
40 C.F.R. § 1037.705
Amended
2026-03-14 § 1042.901 — Definitions
40 C.F.R. § 1042.901
Amended
2026-03-14 § 1037.540 — Special Procedures For Testing Vehicles With Hybrid Power Take-off
40 C.F.R. § 1037.540
Amended
2026-03-14 § 1037.525 — Aerodynamic Measurements For Tractors
40 C.F.R. § 1037.525
Amended
2026-03-14 § 1045.310 — How Must I Select Engines For Production-line Testing?
40 C.F.R. § 1045.310
Amended
2026-03-14 § 1039.705 — How Do I Generate And Calculate Emission Credits?
40 C.F.R. § 1039.705
Amended
2026-03-14 § 1037.570 — Procedures To Characterize Torque Converters
40 C.F.R. § 1037.570
Amended
2026-03-14 § 1037.534 — Constant-speed Procedure For Calculating Drag Area (cda)
40 C.F.R. § 1037.534
Amended
2026-03-14 § 1037.115 — Other Requirements
40 C.F.R. § 1037.115
Amended
2026-03-14 § 1037.305 — Audit Procedures For Tractors—aerodynamic Testing
40 C.F.R. § 1037.305
Amended
2026-03-14 § 1036.705 — Generating And Calculating Emission Credits
40 C.F.R. § 1036.705
Amended
2026-03-14 § 1045.315 — How Do I Know When My Engine Family Fails The Production-line Testing Requirements?
40 C.F.R. § 1045.315
Amended
2026-03-14 § 1042.815 — Demonstrating Availability
40 C.F.R. § 1042.815
Amended
2026-03-14 § 1042.705 — Generating And Calculating Emission Credits
40 C.F.R. § 1042.705
Amended
2026-03-14 § 1037.565 — Transmission Efficiency Test
40 C.F.R. § 1037.565
Amended
2026-03-14 § 1042.905 — Symbols, Acronyms, And Abbreviations
40 C.F.R. § 1042.905
Amended
2026-03-14 § 1045.103 — What Exhaust Emission Standards Must My Outboard And Personal Watercraft Engines Meet?
40 C.F.R. § 1045.103
Amended
2026-03-14 § 1037.555 — Special Procedures For Testing Phase 1 Hybrid Systems
40 C.F.R. § 1037.555
Amended
2026-03-14 § 1036.550 — Calculating Greenhouse Gas Emission Rates
40 C.F.R. § 1036.550
Amended
2026-03-14 § 1045.515 — What Are The Test Procedures Related To Not-to-exceed Standards?
40 C.F.R. § 1045.515
Amended
2026-03-14 § 1039.805 — What Symbols, Acronyms, And Abbreviations Does This Part Use?
40 C.F.R. § 1039.805
Amended
2026-03-14 § 1037.640 — Variable Vehicle Speed Limiters
40 C.F.R. § 1037.640
Amended
2026-03-14 § 1039.101 — What Exhaust Emission Standards Must My Engines Meet After The 2014 Model Year?
40 C.F.R. § 1039.101
Amended
2026-03-14 § 1045.107 — What Are The Not-to-exceed Emission Standards?
40 C.F.R. § 1045.107
Amended
2026-03-14 § 1042.101 — Exhaust Emission Standards For Category 1 And Category 2 Engines
40 C.F.R. § 1042.101
Amended
2026-03-14 § 1039.740 — What Restrictions Apply For Using Emission Credits?
40 C.F.R. § 1039.740
Amended
2026-03-14 § 1037.528 — Coastdown Procedures For Calculating Drag Area (cda)
40 C.F.R. § 1037.528
Amended
2026-03-14 § 1037.510 — Duty-cycle Exhaust Testing
40 C.F.R. § 1037.510
Amended
2026-03-14 § 1036.545 — Powertrain Testing
40 C.F.R. § 1036.545
Amended
2026-03-14 § 1037.560 — Axle Efficiency Test
40 C.F.R. § 1037.560
Amended
2026-03-14 § 1036.530 — Test Procedures For Off-cycle Testing
40 C.F.R. § 1036.530
Amended
2026-03-14 § 799.6784 — Tsca Water Solubility: Column Elution Method; Shake Flask Method
40 C.F.R. § 799.6784
Amended
2026-03-14 § 797.1300 — Daphnid Acute Toxicity Test
40 C.F.R. § 797.1300
Amended
2026-03-14 § 1027.105 — How Much Are The Fees?
40 C.F.R. § 1027.105
Amended
2026-03-14 § 1036.510 — Supplemental Emission Test
40 C.F.R. § 1036.510
Amended
2026-03-14 § 1036.104 — Criteria Pollutant Emission Standards—nox, Hc, Pm, And Co
40 C.F.R. § 1036.104
Amended
2026-03-14 § 1036.235 — Testing Requirements For Certification
40 C.F.R. § 1036.235
Amended
2026-03-14 § 1036.245 — Deterioration Factors For Exhaust Emission Standards
40 C.F.R. § 1036.245
Amended
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