49 C.F.R. § 350.339 What are tolerance guidelines?
Title 49 - Transportation
Tolerance guidelines set forth the limited deviations from the FMCSRs allowed in your State's laws and regulations. These variances apply only to motor carriers, CMV drivers and CMVs engaged in intrastate commerce and not subject to Federal jurisdiction.
Title 49: Transportation
PART 350—COMMERCIAL MOTOR CARRIER SAFETY ASSISTANCE PROGRAM
Subpart C—Funding
§ 350.339 What are tolerance guidelines?