Title 23 — HIGHWAYS

• § 101— Definitions and declaration of policy
• § 102— Program efficiencies
• § 103— National Highway System
• § 104— Apportionment
• § 106— Project approval and oversight
• § 107— Acquisition of rights-of-way—Interstate System
• § 108— Advance acquisition of real property
• § 109— Standards
• § 111— Agreements relating to use of and access to rights-of-way—Interstate System
• § 112— Letting of contracts
• § 113— Prevailing rate of wage
• § 114— Construction
• § 115— Advance construction
• § 116— Maintenance
• § 117— Nationally significant multimodal freight and highway projects
• § 118— Availability of funds
• § 119— National highway performance program
• § 120— Federal share payable
• § 121— Payment to States for construction
• § 122— Payments to States for bond and other debt instrument financing
• § 123— Relocation of utility facilities
• § 124— Bridge investment program
• § 125— Emergency relief
• § 126— Transferability of Federal-aid highway funds
• § 127— Vehicle weight limitations—Interstate System
• § 128— Public hearings
• § 129— Toll roads, bridges, tunnels, and ferries
• § 130— Railway-highway crossings
• § 131— Control of outdoor advertising
• § 132— Payments on Federal-aid projects undertaken by a Federal agency
• § 133— Surface transportation block grant program
• § 134— Metropolitan transportation planning
• § 135— Statewide and nonmetropolitan transportation planning
• § 136— Control of junkyards
• § 137— Fringe and corridor parking facilities
• § 138— Preservation of parklands
• § 139— Efficient environmental reviews for project decisionmaking and One Federal Decision
• § 140— Nondiscrimination
• § 141— Enforcement of requirements
• § 142— Public transportation
• § 143— Highway use tax evasion projects
• § 144— National bridge and tunnel inventory and inspection standards
• § 145— Federal-State relationship
• § 146— Carpool and vanpool projects
• § 147— Construction of ferry boats and ferry terminal facilities
• § 148— Highway safety improvement program
• § 149— Congestion mitigation and air quality improvement program
• § 150— National goals and performance management measures
• § 151— National electric vehicle charging and hydrogen, propane, and natural gas fueling corridors
• § 152— Hazard elimination program
• § 153— Use of safety belts and motorcycle helmets
• § 154— Open container requirements
• § 156— Proceeds from the sale or lease of real property
• § 157— National Environmental Policy Act of 1969 reporting program
• § 158— National minimum drinking age
• § 159— Revocation or suspension of drivers’ licenses of individuals convicted of drug offenses
• § 161— Operation of motor vehicles by intoxicated minors
• § 162— National scenic byways program
• § 163— Safety incentives to prevent operation of motor vehicles by intoxicated persons
• § 164— Minimum penalties for repeat offenders for driving while intoxicated or driving under the influence
• § 165— Territorial and Puerto Rico highway program
• § 166— HOV facilities
• § 167— National highway freight program
• § 168— Integration of planning and environmental review
• § 169— Development of programmatic mitigation plans
• § 170— Funding flexibility for transportation emergencies
• § 171— Wildlife crossings pilot program
• § 172— Wildlife-vehicle collision reduction and habitat connectivity improvement
• § 173— Rural surface transportation grant program
• § 174— State human capital plans
• § 175— Carbon reduction program
• § 176— Promoting Resilient Operations for Transformative, Efficient, and Cost-saving Transportation (PROTECT) program
• § 177— Neighborhood access and equity grant program
• § 178— Environmental review implementation funds
• § 179— Low-carbon transportation materials grants
• § 201— Federal lands and tribal transportation programs
• § 202— Tribal transportation program
• § 203— Federal lands transportation program
• § 204— Federal lands access program
• § 205— Forest development roads and trails
• § 206— Recreational trails program
• § 207— Tribal transportation self-governance program
• § 208— Safe routes to school
• § 210— Defense access roads
• § 217— Bicycle transportation and pedestrian walkways
• § 218— Alaska Highway
• § 301— Freedom from tolls
• § 302— State transportation department
• § 304— Participation by small business enterprises
• § 305— Archeological and paleontological salvage
• § 306— Mapping
• § 308— Cooperation with Federal and State agencies and foreign countries
• § 310— Civil defense
• § 311— Highway improvements strategically important to the national defense
• § 312— Detail of Army, Navy, and Air Force officers
• § 313— Buy America
• § 314— Relief of employees in hazardous work
• § 315— Rules, regulations, and recommendations
• § 316— Consent by United States to conveyance of property
• § 317— Appropriation for highway purposes of lands or interests in lands owned by the United States
• § 318— Highway relocation due to airport
• § 319— Landscaping and scenic enhancement
• § 320— Bridges on Federal dams
• § 321— Signs identifying funding sources
• § 322— Magnetic levitation transportation technology deployment program
• § 323— Donations and credits
• § 324— Prohibition of discrimination on the basis of sex
• § 326— State assumption of responsibility for categorical exclusions
• § 327— Surface transportation project delivery program
• § 328— Eligibility for environmental restoration and pollution abatement
• § 329— Eligibility for control of noxious weeds and aquatic noxious weeds and establishment of native species
• § 330— Program for eliminating duplication of environmental reviews
• § 331— Evaluation of projects within an operational right-of-way
• § 332— Pollinator-friendly practices on roadsides and highway rights-of-way
• § 401— Authority of the Secretary
• § 402— Highway safety programs
• § 403— Highway safety research and development
• § 404— High-visibility enforcement program
• § 405— National priority safety programs
• § 406— General requirements for Federal assistance
• § 407— Discovery and admission as evidence of certain reports and surveys
• § 408— Agency accountability
• § 501— Definitions
• § 502— Surface transportation research, development, and technology
• § 503— Research and technology development and deployment
• § 504— Training and education
• § 505— State planning and research
• § 510— Future strategic highway research program
• § 511— Multistate corridor operations and management
• § 512— National ITS program plan
• § 513— Use of funds for ITS activities
• § 514— Goals and purposes
• § 515— General authorities and requirements
• § 516— Research and development
• § 517— National architecture and standards
• § 518— Vehicle-to-vehicle and vehicle-to-infrastructure communications systems deployment
• § 519— Infrastructure development
• § 520— Transportation Resilience and Adaptation Centers of Excellence
• § 601— Generally applicable provisions
• § 602— Determination of eligibility and project selection
• § 603— Secured loans
• § 604— Lines of credit
• § 605— Program administration
• § 606— State and local permits
• § 607— Regulations
• § 608— Funding
• § 609— Reports to Congress
• § 610— State infrastructure bank program
• § 611— Asset concessions and innovative finance assistance