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  2. Title 49 of the Code of Federal Regulations - Wikipedia

    en.wikipedia.org/wiki/Title_49_of_the_Code_of...

    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.

  3. Hours of service - Wikipedia

    en.wikipedia.org/wiki/Hours_of_service

    Parts of a driver's work day are defined in four terms: On-duty time, off-duty time, driving time, and sleeper berth time.. FMCSA regulation §395.2 states: [5]. On-duty time is all time from when a driver begins to work or is required to be in readiness to work until the driver is relieved from work and all responsibility for performing work.

  4. Motor carrier safety rating - Wikipedia

    en.wikipedia.org/wiki/Motor_carrier_safety_rating

    The audit activity and the resultant motor carrier safety rating has been criticized for being imperfect, and perhaps misleading. Studies [2] [3] have shown that for a considerable number of audit items, correlation coefficients between audit item outcome and actual safety performance have counter-intuitive signs: the better the compliance rating of firms, the worse their accident rates.

  5. Federal Motor Carrier Safety Administration - Wikipedia

    en.wikipedia.org/wiki/Federal_Motor_Carrier...

    The field organizations deliver program services to FMCSA partners and customers. This organization consists of Field Operations, Service center and State-level motor carrier division offices. These offices answer questions and provide guidance concerning the Federal Motor Carrier Safety Regulations. List of FMCSA Service Centers

  6. Federal Motor Vehicle Safety Standards - Wikipedia

    en.wikipedia.org/wiki/Federal_Motor_Vehicle...

    FMVSS No. 129: [33] New non-pneumatic tires for passenger cars- new temporary spare non-pneumatic tires for use on passenger cars; FMVSS No. 131: [34] School bus pedestrian safety devices; FMVSS No. 135: [35] Light vehicle brake systems; FMVSS No. 136: [36] Electronic stability control systems on heavy vehicles; FMVSS No. 138: [37] Tire ...

  7. Motor vehicle declared out of service - Wikipedia

    en.wikipedia.org/wiki/Motor_vehicle_declared_out...

    Motor carrier's disposition of Form MCS 63: Motor carriers shall carefully examine Forms MCS 63 and all violations or mechanical defects noted thereon shall be corrected. To the extent drivers are shown not to be in compliance with the Federal Motor Carrier Safety Regulations, appropriate corrective action shall be taken by the motor carrier.

  8. Tire code - Wikipedia

    en.wikipedia.org/wiki/Tire_code

    Prior to 1964, tires were all made to a 90% aspect ratio. Tire size was specified as the tire width in inches and the diameter in inches – for example, 6.50-15. [29] From 1965 to the early 1970s, tires were made to an 80% aspect ratio. Tire size was again specified by width in inches and diameter in inches.

  9. Code of Federal Regulations - Wikipedia

    en.wikipedia.org/wiki/Code_of_Federal_Regulations

    In the law of the United States, the Code of Federal Regulations (CFR) is the codification of the general and permanent regulations promulgated by the executive departments and agencies of the federal government of the United States. The CFR is divided into 50 titles that represent broad areas subject to federal regulation.