Scheduled Maintenance
Air District systems will undergo planned maintenance from 8am Friday 4/28 through 11pm Sunday 4/30.
There may be disruptions in some services. We apologize for any inconvenience.


Upgrade or replace locomotives with funding from the Carl Moyer Program. This program aims to cut air pollution from heavy-duty diesel engines in California.

Project Types

Funding is offered on a first-come, first-served basis until all funds have been spent. Applications must be complete to be considered for funding.

Funds are available for the following project types:

  • Locomotive replacement - replace an old locomotive with the cleanest available locomotive.
  • Engine replacement (repower) - replace an old engine with a new, emission-certified engine.
  • Engine retrofit - install an emission control or idle-limiting device.
  • Remanufacture kit - install an engine remanufacture kit that reduces engine emissions.
  • Head end power unit replacement - replace the locomotive head end power unit with the cleanest available engine.


The following locomotives are eligible for funding:

  • Class 3, military, industrial, and passenger locomotives.
  • Class 1 locomotives (limited funding available).
  • Locomotives operating within the Air District’s boundaries, with priority given to those operating in areas highlighted in the Priority Community Map (PDF).

How to Apply

  1. Determine your locomotive’s eligibility for this program.
  2. Gather the required information about your current locomotive and replacement locomotive or engine.
  3. Apply for funding online.

Workshops and Events

View the Calendar for upcoming workshops, events, and deadlines.

Additional Information

Learn more about locomotive funding (PDF), including project type details, regulatory information, and application requirements.

Contact Us

Grants Programs Information Request Line

415 749-4994

Contact Us

Spare the Air Status
Spare the Air Status
  • Saturday,

    No Spare the Air Alert in Effect

  • Sunday,

    No Spare the Air Alert in Effect

Last Updated: 5/20/2015