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
      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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