Topics / U.S. heavy-duty vehicle standards

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Summarizes the key elements of the proposed regulation to reduce greenhouse gas (GHG) emissions from new on-road heavy-duty vehicles, including the major vehicle and equipment categories, estimated costs and benefits, and Canada-specific provisions.

Summarizes the final rulemaking on new Phase 2 standards to reduce HDV fuel consumption and GHG emissions. Together with Phase 1, the increased efficiency of HD trucks and buses will cut fuel use by over one-third by 2050.

Analyzes the implications of a growing natural gas vehicle fleet on the emission benefits of the U.S. HDV “Phase 2” greenhouse gas rulemaking, synthesizing data on upstream emissions, vehicle emissions, and efficiency technology.


Summarizes and evaluates approaches to testing and certifying power-train systems and complete vehicles.

Publication: White paper

An overview of global heavy-duty vehicle standards and the U.S. rule finalized in 2011.

Publication: Presentation