This sector consists of trucks, vans, buses, waste haulers, and emergency-response vehicles.

Diesel emissions from on-road vehicles can be reduced by:

• Replacing diesel vehicles with:
  • Near-zero-emission vehicles (propane, renewable natural gas) 
  • Zero-emission vehicles (battery electric, hydrogen fuel cell)
• Employing best practices
  • Regular engine maintenance
  • Matching the right-sized vehicle to the right application
  • Route planning
• Switching to cleaner fuels, like renewable diesel and/or biodiesel

This sector includes construction equipment, aircraft-support equipment, and cargo-handling equipment used at seaports, rail yards, distribution centers, and waste transfer stations.

Diesel emissions from off-road equipment can be reduced by:

• Replacing diesel vehicles or engines with:
  • Near-zero-emissions technology (propane, renewable natural gas) 
  • Zero-emissions technology (battery electric, hydrogen fuel cell)
• Installing idle-reduction technologies
• Switching to cleaner fuels, like renewable diesel and/or biodiesel

This sector includes ocean going vessels (container ships, cruise ships, tankers, bulk carries) and harbor vessels (tugboats, work boats, ferries, excursion vessels, government vessels, and some commercial fishing boats). 

Diesel emissions from marine vessels can be reduced by: 

• Replacing engines with cleaner diesel engines
• Installing hybrid-technology
• Installing shore power connections for vessels at berth
• Employing energy efficient best practices

This sector consists of locomotives that transport goods and people, including switcher, short-line, and line-haul locomotives.

Diesel emissions from locomotives can be reduced by:

• Replacing locomotives or locomotive engines with:
  • Cleaner diesel-electric locomotives
  • Battery electric locomotives
  • Hydrogen fuel cell locomotives
• Installing idle-reduction technology 
• Using cleaner fuels, like renewable diesel and/or biofuels