Chapter I — Federal Highway Administration, Department of Transportation
- Subch. A General Management and Administration §§1.1 to 1.36
- Subch. B Payment Procedures §§140.501 to 192.7
- Subch. C Civil Rights §§200.1 to 230.415
- Subch. D National Highway Institute §§260.101 to 260.407
- Subch. E Planning and Research §§420.101 to 490.811
- Subch. F Transportation Infrastructure Management §§511.301 to 515.19
- Subch. G Engineering and Traffic Operations §§620.101 to 680.118
- Subch. H Right-Of-Way and Environment §§710.101 to 778.113
- Subch. I Public Transportation §§810.2 to 810.310
- Subch. J Highway Safety §§924.1 to 924.17
- Subch. K Intelligent Transportation Systems §§940.1 to 950.9
- Subch. L Federal Lands Highways