Do surge brakes meet brake requirements of Part 393?
There are different provisions for surge brakes for interstate (across state lines) and intrastate transportation:
  • Interstate transportation: Surge brakes are allowed on any trailer with a gross vehicle weight rating (GVWR) of 12,000 lbs. or less, when its GVWR does not exceed 1.75 times the GVWR of the towing vehicle; or any trailer with a GVWR of more than 12,000 lbs. but less than 20,001 lbs. when its GVWR does not exceed 1.25 times the GVWR of the towing vehicle. See section 393.48 of the FMCSR.
  • Intrastate transportation: Surge brakes are allowed on any trailer when the combination has a GVWR of not more than 26,000 lbs. AND the actual Gross Vehicle Weight (GVW) or GVWR of the trailer is 15,000 lbs. or less. Vehicles of any size that are transporting hazardous materials in an amount that requires placarding or vehicles that are designed to transport more than 8 passengers, including the driver, are prohibited from being equipped with surge brakes in intrastate commerce.

Show All Answers

1. I operate a truck with a GVWR of 10,001 pounds. Do I need a Medical Examiner's Certificate?
2. I operate a truck that weighs less than 8,000 pounds and pull a trailer. Do I need to plate the truck with an Elected Gross Vehicle Weight registration plate?
3. I hold a commercial driver's license (CDL). Am I subject to the controlled substance and alcohol testing rules?
4. I operate a commercial motor vehicle; may I use a radar detector in the vehicle?
5. I operate a commercial motor vehicle more than 100 air miles of my work reporting location. Am I required to maintain a driver's logbook?
6. Can my carrier require me to drive a CMV after I have worked 60 hours in 7 consecutive days?
7. What types of brakes are required on a commercial motor vehicle?
8. Do surge brakes meet brake requirements of Part 393?
9. I drive a commercial motor vehicle. Am I required to do a post trip inspection?
10. Is there a place I can call to get answers to my questions regarding operating a commercial motor vehicle?
11. Where can I obtain copies of the Physical Examination form and other USDOT required forms?
12. I own a pick up truck that weighs less than 8,000 lbs. empty and I tow a trailer for commercial purposes. Do I need an EGVW plate?