Data / Federal rules / Fuel economy
Federal rules on fuel economy: 12 since March 2024
10 final rules and 2 proposed rules since March 15, 2024, 6 of them marked significant. Most come from the National Highway Traffic Safety Administration (5), Environmental Protection Agency (3), Energy Department (2), Energy and Environmental Policy Office (1).
SpecStream is the live web data engine for teams and agents. It reads every rule and proposed rule in the Federal Register each morning, and this page is that reading. Name your industry once and new rules, comment deadlines and effective dates arrive in your sheet, CRM, Slack or agent as they are published.
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- Reporting and recordkeeping requirements 4643
- Incorporation by reference 3601
- Administrative practice and procedure 2328
- Aircraft 1755
- Aviation safety 1746
- Safety 1703
- Air transportation 1601
- Environmental protection 1493
- Intergovernmental relations 1226
- Air pollution control 1044
- Navigation (air) 853
- Penalties 778
- Security measures 745
- Airspace 743
- Navigation (water) 697
- Marine safety 692
- Waterways 678
- Ozone 659
- Harbors 626
- Volatile organic compounds 601
- Imports 511
- Particulate matter 459
- Nitrogen dioxide 441
- Sulfur oxides 423
- Exports 415
- Transportation 313
- Carbon monoxide 252
- Confidential business information 239
- Fisheries 233
- Lead 232
- Claims 221
- Government employees 219
- Government procurement 215
- Fishing 213
- Banks, banking 210
- Hazardous substances 209
- Privacy 203
- Medical devices 198
- Nitrogen oxides 195
- Wildlife 190
- Freedom of information 186
- Consumer protection 183
- Government contracts 182
- Agricultural commodities 181
- Airports 179
- Individuals with disabilities 176
- Pesticides and pests 166
- Investigations 164
- Securities 162
- Hazardous waste 159
- Income taxes 158
- Credit 157
- Air traffic control 155
- Telecommunications 151
- Civil rights 150
- Health facilities 147
- Small businesses 144
- Endangered and threatened species 143
- Indians 143
- Chemicals 142
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.