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- 23 U.S.C. § 158 · National minimum drinking age
- 23 U.S.C. § 159 · Revocation or suspension of drivers’ licenses of individuals convicted of drug offenses
- 23 U.S.C. § 160 · [Repealed. Pub. L. 112–141, div. A, title I, § 1519(b)(1)(A), July 6, 2012, 126 Stat. 575]
- 23 U.S.C. § 161 · Operation of motor vehicles by intoxicated minors
- 23 U.S.C. § 162 · National scenic byways program
- 23 U.S.C. § 163 · Safety incentives to prevent operation of motor vehicles by intoxicated persons
- 23 U.S.C. § 164 · Minimum penalties for repeat offenders for driving while intoxicated or driving under the influence
- 23 U.S.C. § 165 · Territorial and Puerto Rico highway program
- 23 U.S.C. § 166 · HOV facilities
- 23 U.S.C. § 167 · National highway freight program
- 23 U.S.C. § 168 · Integration of planning and environmental review
- 23 U.S.C. § 169 · Development of programmatic mitigation plans
- 23 U.S.C. § 170 · Funding flexibility for transportation emergencies
- 23 U.S.C. § 171 · Wildlife crossings pilot program
- 23 U.S.C. § 172 · Wildlife-vehicle collision reduction and habitat connectivity improvement
- 23 U.S.C. § 173 · Rural surface transportation grant program
- 23 U.S.C. § 174 · State human capital plans
- 23 U.S.C. § 175 · Carbon reduction program
- 23 U.S.C. § 176 · Promoting Resilient Operations for Transformative, Efficient, and Cost-saving Transportation (PROTECT) program
- 23 U.S.C. § 177 · Neighborhood access and equity grant program
- 23 U.S.C. § 178 · Environmental review implementation funds
- 23 U.S.C. § 179 · Low-carbon transportation materials grants
- 23 U.S.C. § 181 to 190 · [Renumbered §§ 601 to 610]
- 23 U.S.C. § 201 · Federal lands and tribal transportation programs
- 23 U.S.C. § 202 · Tribal transportation program
- 23 U.S.C. § 203 · Federal lands transportation program
- 23 U.S.C. § 204 · Federal lands access program
- 23 U.S.C. § 205 · Forest development roads and trails
- 23 U.S.C. § 206 · Recreational trails program
- 23 U.S.C. § 207 · Tribal transportation self-governance program
- 23 U.S.C. § 208 · Safe routes to school
- 23 U.S.C. § 209 · [Repealed. Pub. L. 97–424, title I, § 126(d), Jan. 6, 1983, 96 Stat. 2115]
- 23 U.S.C. § 210 · Defense access roads
- 23 U.S.C. § 211 · [Repealed. Pub. L. 100–17, title I, § 133(e)(1), Apr. 2, 1987, 101 Stat. 173]
- 23 U.S.C. § 212 · [Repealed. Pub. L. 112–141, div. A, title I, § 1519(b)(1)(A), July 6, 2012, 126 Stat. 575]
- 23 U.S.C. § 213 · [Repealed. Pub. L. 114–94, div. A, title I, § 1109(c)(2), Dec. 4, 2015, 129 Stat. 1343]
- 23 U.S.C. § 214 · [Repealed. Pub. L. 112–141, div. A, title I, § 1119(b), July 6, 2012, 126 Stat. 491]
- 23 U.S.C. § 215 · [Repealed. Pub. L. 112–141, div. A, title I, § 1114(b)(2)(A), July 6, 2012, 126 Stat. 468]
- 23 U.S.C. § 216 · [Repealed. Pub. L. 112–141, div. A, title I, § 1519(b)(1)(A), July 6, 2012, 126 Stat. 575]
- 23 U.S.C. § 217 · Bicycle transportation and pedestrian walkways
- 23 U.S.C. § 218 · Alaska Highway
- 23 U.S.C. § 219 · [Repealed. Pub. L. 100–17, title I, § 133(e)(1), Apr. 2, 1987, 101 Stat. 173]
- 23 U.S.C. § 301 · Freedom from tolls
- 23 U.S.C. § 302 · State transportation department
- 23 U.S.C. § 303 · [Repealed. Pub. L. 112–141, div. A, title I, § 1519(b)(1)(A), July 6, 2012, 126 Stat. 575]
- 23 U.S.C. § 304 · Participation by small business enterprises
- 23 U.S.C. § 305 · Archeological and paleontological salvage
- 23 U.S.C. § 306 · Mapping
- 23 U.S.C. § 307 · [Repealed. Pub. L. 105–178, title V, § 5119(b), June 9, 1998, 112 Stat. 452]
- 23 U.S.C. § 308 · Cooperation with Federal and State agencies and foreign countries
- 23 U.S.C. § 309 · [Repealed. Pub. L. 112–141, div. A, title I, § 1519(b)(1)(A), July 6, 2012, 126 Stat. 575]
- 23 U.S.C. § 310 · Civil defense
- 23 U.S.C. § 311 · Highway improvements strategically important to the national defense
- 23 U.S.C. § 312 · Detail of Army, Navy, and Air Force officers
- 23 U.S.C. § 313 · Buy America
- 23 U.S.C. § 314 · Relief of employees in hazardous work
- 23 U.S.C. § 315 · Rules, regulations, and recommendations
- 23 U.S.C. § 316 · Consent by United States to conveyance of property
- 23 U.S.C. § 317 · Appropriation for highway purposes of lands or interests in lands owned by the United States
- 23 U.S.C. § 318 · Highway relocation due to airport
- 23 U.S.C. § 319 · Landscaping and scenic enhancement
- 23 U.S.C. § 320 · Bridges on Federal dams
- 23 U.S.C. § 321 · Signs identifying funding sources
- 23 U.S.C. § 322 · Magnetic levitation transportation technology deployment program
- 23 U.S.C. § 323 · Donations and credits
- 23 U.S.C. § 324 · Prohibition of discrimination on the basis of sex
- 23 U.S.C. § 325 · [Repealed. Pub. L. 117–58, div. A, title I, § 11525(r), Nov. 15, 2021, 135 Stat. 608]
- 23 U.S.C. § 326 · State assumption of responsibility for categorical exclusions
- 23 U.S.C. § 327 · Surface transportation project delivery program
- 23 U.S.C. § 328 · Eligibility for environmental restoration and pollution abatement
- 23 U.S.C. § 329 · Eligibility for control of noxious weeds and aquatic noxious weeds and establishment of native species
- 23 U.S.C. § 330 · Program for eliminating duplication of environmental reviews
- 23 U.S.C. § 331 · Evaluation of projects within an operational right-of-way
- 23 U.S.C. § 332 · Pollinator-friendly practices on roadsides and highway rights-of-way
- 23 U.S.C. § 401 · Authority of the Secretary
- 23 U.S.C. § 402 · Highway safety programs
- 23 U.S.C. § 403 · Highway safety research and development
- 23 U.S.C. § 404 · High-visibility enforcement program
- 23 U.S.C. § 405 · National priority safety programs
- 23 U.S.C. § 406 · General requirements for Federal assistance
- 23 U.S.C. § 407 · Discovery and admission as evidence of certain reports and surveys
- 23 U.S.C. § 408 · Agency accountability
- 23 U.S.C. § 409 · [Renumbered § 407]
- 23 U.S.C. § 410, 411 · [Repealed. Pub. L. 112–141, div. C, title I, § 31109(e), (f), July 6, 2012, 126 Stat. 757]
- 23 U.S.C. § 412 · [Renumbered § 408]
- 23 U.S.C. § 501 · Definitions
- 23 U.S.C. § 502 · Surface transportation research, development, and technology
- 23 U.S.C. § 503 · Research and technology development and deployment
- 23 U.S.C. § 504 · Training and education
- 23 U.S.C. § 505 · State planning and research
- 23 U.S.C. § 506, 507 · [Repealed. Pub. L. 112–141, div. E, title II, §§ 52006(a), 52007(a), July 6, 2012, 126 Stat. 882]
- 23 U.S.C. § 508 · [Repealed. Pub. L. 114–94, div. A, title VI, § 6019(d)(1)(A), Dec. 4, 2015, 129 Stat. 1581]
- 23 U.S.C. § 509 · [Repealed. Pub. L. 112–141, div. E, title II, § 52008(a), July 6, 2012, 126 Stat. 882]
- 23 U.S.C. § 510 · Future strategic highway research program
- 23 U.S.C. § 511 · Multistate corridor operations and management
- 23 U.S.C. § 512 · National ITS program plan
- 23 U.S.C. § 513 · Use of funds for ITS activities
- 23 U.S.C. § 514 · Goals and purposes
- 23 U.S.C. § 515 · General authorities and requirements
- 23 U.S.C. § 516 · Research and development