The Department of Transportation (DOT) was established by an act of Congress on October 15, 1966. The Department’s first official day of operation was April 1, 1967. [http://www.dot.gov/about.html]
The mission of the Department of Transportation is to ensure a fast, safe, efficient, accessible and convenient transportation system that meets our vital national interests and enhances the quality of life of the American people.
Organizations within the DOT include the Federal Highway Administration, the Federal Aviation Administration, the National Highway Traffic Safety Administration, the Federal Transit Administration, the Federal Railroad Administration and the Maritime Administration.
For further information about the functions, organization, and activities, of the U.S. Department of Transportation, please visit http://www.dot.gov/.
- Commercial Space Transportation Office
- Federal Aviation Administration
- Federal Highway Administration
- Federal Motor Carrier Safety Administration
- Federal Railroad Administration
- Federal Transit Administration
- Maritime Administration
- National Highway Traffic Safety Administration
- Office of Motor Carrier Safety
- Pipeline and Hazardous Materials Safety Administration
- Research and Innovative Technology Administration
- Research and Special Programs Administration
- Saint Lawrence Seaway Development Corporation
- Transportation Statistics Bureau
National Performance Management Measures; Assessing Pavement Condition for the National Highway Performance Program and Bridge Condition for the National Highway Performance Program; National Performance Management Measures; Assessing Performance of the National Highway System, Freight Movement on the Interstate System, and Congestion Mitigation and Air Quality Improvement Program
In accordance with the memorandum of January 20, 2017, from the Assistant to the President and Chief of Staff, entitled ``Regulatory Freeze Pending Review,'' published in the Federal Register on January 24, 2017, the Department delays the effective dates of the following regulations until March 21, 2017: National Performance Management Measures;...
On December 6, 2016, FRA published an NPRM proposing to amend its regulations on passenger equipment safety standards. By this document, FRA is reopening the NPRM's comment period, which closed February 6, 2017.
On August 12, 2016, FRA published a final rule requiring commuter and intercity passenger railroads to develop and implement a system safety program (SSP) to improve the safety of their operations. See 81 FR 53850. In this document we are issuing a stay of those requirements until March 21, 2017.
This action temporarily delays for 36 days the effective date of the rule entitled ``Federal Motor Vehicle Safety Standards; Minimum Sound Requirements for Hybrid and Electric Vehicles,'' published in the Federal Register on December 14, 2016.
In accordance with the Presidential directive as expressed in the memorandum of January 20, 2017, from the Assistant to the President and Chief of Staff, entitled ``Regulatory Freeze Pending Review,'' this action temporarily delays until March 21, 2017, the effective date of the final rule titled ``Minimum Training Requirements for Entry-Level...
We are adopting a new airworthiness directive (AD) for certain Gulfstream Aerospace Corporation Model GVI airplanes. This AD was prompted by a report indicating that there are design deficiencies in the software used for monitoring the disconnect for the flight control computer (FCC)-hosted flight controls actuation main ram linear variable...
We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 757 airplanes. This AD was prompted by reports of single and multiple uncommanded spoiler panel extensions during flight when there was a hydraulic system failure. This AD requires replacing certain spoiler power control units (PCUs) with new or changed PCUs....
We propose to adopt a new airworthiness directive (AD) for all Airbus Model A321 series airplanes. This proposed AD was prompted by a full scale fatigue test campaign on these airplanes in the context of the extended service goal. This proposed AD would require inspections of the affected frame locations, and repair if necessary. We are...
We are superseding Airworthiness Directive (AD) 2014-23-06 for certain Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. AD 2014-23-06 required modifying the main landing gear (MLG) by installing a new bracket on the left and right lower aft-wing planks. This new AD requires modification of the MLG with an improved...
We are superseding Airworthiness Directive (AD) 2012-16-07 for certain The Boeing Company Model 737-500 series airplanes. AD 2012-16- 07 required inspections of the fuselage skin at the chem-milled steps, and repair if necessary. This new AD adds new inspections, permanent repairs of time-limited repairs, related investigative and corrective...
We are superseding Airworthiness Directive (AD) 2011-10-17 for all Airbus Model A300 and A310 series airplanes, and Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model C4-605R Variant F airplanes (collectively called A300-600 series airplanes). AD 2011-10- 17 required revising the maintenance program by incorporating certain...
We are adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-300, -400, and -500 series airplanes. This AD was prompted by reports of intergranular cracks on the front spar chord lugs of the outboard horizontal stabilizer. This AD requires repetitive inspections of the front spar chord lugs and lug bores of the...
We propose to adopt a new airworthiness directive (AD) for British Aerospace Regional Aircraft Model HP 137 Jetstream MK1, Jetstream Series 200, and Jetstream Series 3101 airplanes that would supersede AD 2014-07-07. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another...
We propose to adopt a new airworthiness directive (AD) for Airbus Helicopters Deutschland GmbH (Airbus Helicopters) Model MBB-BK 117 C-2 (including configuration C-2e) and MBB-BK 117 D-2 helicopters. This proposed AD would require replacing the main rotor (M/R) blade vibration absorbers. This proposed AD is prompted by a report of strong M/R...
We propose to adopt a new airworthiness directive (AD) for Romtex torso restraint systems (restraint systems) installed on but not limited to Airbus Helicopters Model AS350B2, AS350B3, EC130B4, EC130T2, and AS355NP helicopters. This proposed AD would require replacing certain restraint system buckles. This proposed AD is prompted by a report of...