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CFR Title 49 - Transportation is one of fifty titles comprising the United States Code of Federal Regulations (CFR). Title 49 is the principal set of rules and regulations (sometimes called administrative law) issued by the Departments of Transportation and Homeland Security, federal agencies of the United States regarding transportation and transportation-related security.
List of FMCSA standards for motor vehicles Archived 2013-03-28 at the Wayback Machine "Timeline of Federal Motor Vehicle Safety Standards by Year and Notable Technologies" (PDF). National Highway Traffic Safety Administration. 2012. Archived from the original (PDF) on 2021-06-24
The Manual on Uniform Traffic Control Devices for Streets and Highways (usually referred to as the Manual on Uniform Traffic Control Devices, abbreviated MUTCD) is a document issued by the Federal Highway Administration (FHWA) of the United States Department of Transportation (USDOT) to specify the standards by which traffic signs, road surface markings, and signals are designed, installed ...
11th edition of the MUTCD, published December 2023. In the United States, road signs are, for the most part, standardized by federal regulations, most notably in the Manual on Uniform Traffic Control Devices (MUTCD) and its companion volume the Standard Highway Signs (SHS).
The two most important differences between U.S. traffic rules and foreign countries' traffic rules are as follows: Very heavy use of fully-signed, mandatory 4-way stop signs at intersections (rather than 2-way stops, yields, or roundabouts as in other countries) with priority to the first vehicle (priority to the right if two arrive at the ...
Hours of service (HOS) regulations are issued by the Federal Motor Carrier Safety Administration (FMCSA) and govern the working hours of anyone operating a commercial motor vehicle (CMV) in the United States. These regulations apply to truck drivers, commercial and intercity bus drivers, and school bus drivers who operate CMVs. These rules ...
Regulatory traffic signs within the United States must comply with the federal Manual on Uniform Traffic Control Devices (MUTCD) or the State MUTCD, depending on the state in which the sign is installed. These signs typically have a white background with black or red legends (legends include text, symbols, graphics not part of the background ...
Road traffic control devices are markers, signs and signal devices used to inform, guide and control traffic, including pedestrians, motor vehicle drivers and bicyclists. These devices are usually placed adjacent, over or along the highways , roads, traffic facilities and other public areas that require traffic control .