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May a driver with an air brake restriction on his or her CDL operate a CMV equipped with a hydraulic braking system that has an air-assisted parking brake release?

Document
FMCSA-CDL-383.95-Q01 tmw_0.docx (24 KB)

§383.95 – Air Brake Restrictions

Guidance Q&A

Question 1: May a driver with an air brake restriction on his or her CDL operate a CMV equipped with a hydraulic braking system that has an air-assisted parking brake release?

 Guidance: Yes. The air brake restriction applies only to the principal braking system used to stop the vehicle. Section 383.95(a) is not applicable to an air-assisted mechanism to release the parking brake.

Regulatory Topic: Commercial Driver License Standards; Air Brake Restrictions
Effective Date: Thursday, March 7, 2019
Issued Date: Friday, March 1, 2019