49 CFR 523.6 - Heavy-duty vehicle.

(a) A heavy-duty vehicle is any commercial medium or heavy-duty on-highway vehicle or a work truck, as defined in 49 U.S.C. 32901(a)(7) and (19). For the purpose of this section, heavy-duty vehicles are divided into four regulatory categories as follows:

(1) Heavy-duty pickup trucks and vans;

(2) Heavy-duty vocational vehicles;

(3) Truck tractors with a GVWR above 26,000 pounds; and

(4) Heavy-duty trailers.

(b) The heavy-duty vehicle classification does not include vehicles excluded as specified in 49 CFR 535.3.

[ 81 FR 74237, Oct. 25, 2016]

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United States Code
U.S. Code: Title 49 - TRANSPORTATION

Title 49 published on 09-Jun-2018 04:52

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 49 CFR Part 523 after this date.

  • 2017-08-21; vol. 82 # 160 - Monday, August 21, 2017
    1. 82 FR 39551 - Request for Comment on Reconsideration of the Final Determination of the Mid-Term Evaluation of Greenhouse Gas Emissions Standards for Model Year 2022-2025 Light-Duty Vehicles; Request for Comment on Model Year 2021 Greenhouse Gas Emissions Standards
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, ENVIRONMENTAL PROTECTION AGENCY, National Highway Traffic Safety Administration
      Request for comment.
      Comments must be received on or before October 5, 2017. EPA will announce the public hearing date and location for this document in a supplemental Federal Register publication.
      49 CFR Parts 523, 531, 533, 536 and 537
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