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.

2015.05.11

Discusses the use of computer simulation to certify whole-vehicle efficiency of HDVs, and compares tools used to quantify HDV CO2 emissions in the US (GEM v2.0) and EU (VECTO v2.0.3 beta; not yet used in a regulatory context).

Publication: White paper
2015.04.21
Over the past generation, a lot has changed for the workhorse of American freight-hauling, the eighteen-wheel big rig, officially known as the Class 8 long-haul tractor-trailer. One thing that hasn't is their paltry fuel economy.
Blog Post
2015.04.21

Evaluation, based on leading technology effectiveness, technology cost, and fuel price data, of payback periods for the efficiency technologies analyzed in a companion paper on tractor-trailer technology potential.

Publication: White paper
2015.04.20

Assesses, through simulation modeling, the potential of various efficiency technologies to improve tractor-trailer efficiency in long-haul applications, 2020–2030.

Publication: White paper
2015.04.20
If you live in the U.S., you've seen commercials for pickup trucks trumpeting “best-in-class” horsepower, towing, and payload capability.
Blog Post
2015.04.20

Analysis of data, technologies, and regulatory design considerations related to establishing efficiency standards for commercial heavy-duty pickups and vans.

Publication: White paper
2014.12.10

Assesses the energy-use breakdown of US EPA 2010 compliant heavy-duty diesel engines and characterizes engine fueling maps for use in vehicle efficiency simulation tools.

Publication: Consultant report
2014.10.29

Identifies six certification options, using Phase 1 and publicly expressed industry viewpoints as a guide, and evaluates them based on seven criteria developed to compare the certification procedures’ relative merits.

Publication: White paper
2014.08.28

Reports on the workshop “Emerging Technologies for Heavy-Duty Vehicle Fuel Efficiency” convened in July 2014 by the American Council for an Energy-Efficient Economy and the International Council on Clean Transportation.

Publication: Workshop report

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