Congress.wikiCongress.wiki
Congress
MapWatchScheduleDaily RecordMembersCommitteesLegislationNominations
Money & Oversight
MoneyOffice SpendingSubpoenasHouse EthicsForeign InfluenceSpecial Rules
Executive & Law
AgenciesRegulationsUS Code

Without donations, we may shut down.Congress.wiki needs your support. Without donations, we may have to shut down the site.

Learn whyDonate
Search⌘K
Congress
MapWatchScheduleDaily RecordMembersCommitteesLegislationNominations
Money & Oversight
MoneyOffice SpendingSubpoenasHouse EthicsForeign InfluenceSpecial Rules
Executive & Law
AgenciesRegulationsUS Code
All agenciesUSA.govU.S. Government Manual
Executive
cabinet department
DOT

Department of Transportation (DOT)

The Department of Transportation (DOT) is responsible for planning and coordinating federal transportation projects. It also sets safety regulations for all major modes of transportation.

8child agencies
2recorded aliases
2official source records

Agency profile

Core identity, hierarchy, and public contact details from the authoritative directory.

Official name
U.S. Department of Transportation
Display name
Department of Transportation (DOT)
Short name
DOT
Branch
Executive
Agency type
cabinet department
Phone
1-202-366-4000
Main address
1200 New Jersey Ave., SE Washington, DC 20590

Child agencies

Agencies nested under this record in the published hierarchy.

FAA
Executive

Federal Aviation Administration (FAA)

The Federal Aviation Administration (FAA) works to ensure that air travel is safe.

FHWA
Executive

Federal Highway Administration (FHWA)

The Federal Highway Administration (FHWA) supports state and local government in the design, construction, and maintenance of the highway system.

FMCSA
Executive

Federal Motor Carrier Safety Administration (FMCSA)

The Federal Motor Carrier Safety Administration (FMCSA) works to prevent deaths and injuries related to commercial motor vehicles. You can file a complaint with the Federal Motor Carrier Safety Administration if you have trouble with a mover.

FRA
Executive

Federal Railroad Administration (FRA)

The Federal Railroad Administration (FRA) creates and enforces rail safety regulations, administers rail funding, and researches rail improvement strategies and technologies.

FTA
Executive

Federal Transit Administration (FTA)

The Federal Transit Administration (FTA) seeks to improve public transportation by assisting state and local governments with planning, implementation, and financing public transportation projects.

MARAD
Executive

Maritime Administration (MARAD)

The Maritime Commission (MARAD) supports the U.S. merchant marine, improves port efficiency, and maintains an adequate ship building and repair infrastructure.

NHTSA
Executive

National Highway Traffic Safety Administration (NHTSA)

The National Highway Traffic Safety Administration (NHTSA) investigates safety defects in motor vehicles, sets and enforces fuel economy standards, helps states and local communities reduce the threat of drunk drivers, promotes the use of safety belts, child safety seats and air bags, investigates odometer fraud, establishes and enforces vehicle anti-theft regulations, conducts research on driver behavior and traffic safety, and provides consumer information on motor vehicle safety topics.

PHMSA
Executive

Pipeline and Hazardous Materials Safety Administration (PHMSA)

The Pipeline and Hazardous Materials Safety Administration (PHMSA) regulates the transport of hazardous materials.

Known names and aliases

Alternate names captured from the upstream authoritative sources.

U.S. Department of Transportationofficial · primary
DOTshort name

Official links

Direct links back to government-maintained profiles and agency contact surfaces.

Official websiteContact pageOffice locatorUSA.gov profileU.S. Government Manual
Phone

1-202-366-4000

Main address

1200 New Jersey Ave., SE Washington, DC 20590

Source records

Trace each directory field back to the official federal source that published it.

USA.gov
us_government_manual

Recent rules and notices

Recent Federal Register items published by this agency. Read the summary here or jump to the raw public record.

Rule
Published October 26, 2026
91 FR 67200

Establishment of Class E Airspace; Canton, IL

This action establishes Class E airspace at Graham Hospital Heliport, Canton, IL. This action supports new instrument procedures and instrument flight rule (IFR) operations.

Starts February 18, 2027
CFR Title 14, Part 71
Read summaryOpen sourcePDF
Notice
Published October 26, 2026
91 FR 67389

Parts and Accessories Necessary for Safe Operation; Application for an Exemption From R.B. Stewart Petroleum Products, Inc., USDOT # 1290158

FMCSA requests public comment on an application from R.B. Stewart Petroleum Products, Inc., USDOT No. 1290158, (R.B. Stewart) for an exemption from the requirement that lighting devices be steady burning. The exemption would allow the company to operate commercial motor vehicles (CMVs) equipped with a module manufactured by Intellistop, Inc. (Intellistop) which pulses the rear clearance, identification, and brake lamps from low-level lighting intensity to high-level lighting intensity 4 times in 2 seconds when the brakes are applied, and then return the lights to a steady-burning state while the brakes remain engaged. FMCSA requests public comment on the applicant's request for exemption.

Comment by November 25, 2026
Read summaryOpen sourcePDF
Proposal
Published October 26, 2026
91 FR 67243

Federal Motor Vehicle Safety Standards; Modernization of FMVSS No. 108 To Accommodate ADS-Equipped Vehicles

NHTSA is proposing to amend Federal Motor Vehicle Safety Standard (FMVSS) No. 108, "Lamps, reflective devices, and associated equipment." The proposed updates to the standard are intended to remove unnecessary requirements and to provide design flexibility without impact on vehicle safety. The first two proposed changes would amend the test voltage specification for integral beam type headlamps and remove requirements that apply to vertical headlamp arrangements. Further proposed changes address vehicles equipped with Automated Driving Systems (ADS) that do not have manually operated driving controls. Those modifications would limit the application of certain requirements for manually operated turn signal, hazard warning signal, and beam switching controls to vehicles with manually operated driving controls. The changes are intended to address regulatory burdens and costs associated with equipment that does not fulfill the same purpose or provide safety benefits in an ADS-equipped vehicle without manually operated driving controls as in a vehicle with such controls. The changes would also narrow certain requirements for telltales to vehicles with manually operated driving controls and incorporate the term "telltale" where appropriate throughout the standard. Finally, a proposed addition to the standard would allow cyan-colored ADS marker lamps as optional motor vehicle lighting equipment in ADS-equipped vehicles.

Comment by November 25, 2026
CFR Title 49, Part 571
Read summaryOpen sourcePDF
Proposal
Published October 23, 2026
91 FR 66827

Part 572; Anthropomorphic Test Devices; Test Device for Human Occupant Restraint 50th Percentile Adult Male Dummy (THOR-50M); Extension of Comment Period

In response to a request from the Alliance for Automotive Innovation (Auto Innovators), NHTSA is announcing a 30-day extension of the public comment period for the Supplemental Notice of Proposed Rulemaking (SNPRM) published on September 22, 2026. The SNPRM supplements NHTSA's September 2023 notice of proposed rulemaking to amend NHTSA's regulations to include an advanced crash test dummy (the Test Device for Human Occupant Restraint (THOR) 50th percentile adult male) by requesting comment on specifying an additional spine configuration and an alternative to the face foam, and announcing the availability of additional documents. The comment period for the SNPRM was originally scheduled to end on October 22, 2026. It will now end on November 21, 2026.

Comment by November 21, 2026
CFR Title 49, Part 572
Read summaryOpen sourcePDF
Rule
Published October 23, 2026
91 FR 66785

Airworthiness Directives; The Boeing Company Airplanes; Correction

The FAA is correcting an airworthiness directive (AD) that was published in the Federal Register. That AD applies to certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. As published, a paragraph reference specified in the regulatory text is incorrect. This document corrects that error. In all other respects, the original document remains the same.

Starts November 12, 2026
CFR Title 14, Part 39
Read summaryOpen sourcePDF
Rule
Published October 23, 2026
91 FR 66783

Airworthiness Directives; MD Helicopters, LLC Helicopters

The FAA is adopting a new airworthiness directive (AD) for certain MD Helicopters, LLC (MDHI) Model 369D, 369E, 369F, 369FF, 369H, and 500N helicopters. This AD was prompted by a report of mechanical damage to the main transmission drive shaft coupling (coupling). This AD requires a one-time visual inspection of the couplings for cracks of the splines and, depending on the results, replacement of the couplings. The FAA is issuing this AD to address the unsafe condition on these products.

Starts November 27, 2026
CFR Title 14, Part 39
Read summaryOpen sourcePDF

Showing the latest 6 of 2508 matched items.

Get a weekly summary of what Congress did, delivered every Sunday.

  • About
  • How Congress Works
  • Quiz
  • Congress Wrapped
  • Pricing
  • Roadmap
  • Health
  • Privacy Policy
  • Terms of Service
WhiteHouse.wiki•SCOTUS.wiki
Congress.wiki Alpha
Support Us

This is not an official government website.

© 2026 PLEJ LC. All rights reserved.