Ozone Season Free Transit Grant Program

SB22-180 created the Ozone Season Transit Grant Program to provide grants to the Regional Transportation District (RTD) and transit associations in order to provide free transit services for at least 30 days during ozone season. The program is designed to support the state’s transit agencies to rebuild transit ridership, and reduce driving during ozone season. Ground level ozone poses health risks to all Coloradans, particularly to vulnerable populations including the elderly, young children, and people with asthma or other respiratory diseases. Reducing vehicle traffic by encouraging the use of public transit is one key strategy to help reduce ozone-forming emissions and ground level ozone during the summer months. Transit ridership during the COVID-19 pandemic fell nationwide, and while vehicle traffic has returned as COVID cases have declined, transit ridership has yet to return to its pre-pandemic levels. Encouraging more people to ride transit is one essential strategy to achieve reductions in greenhouse gas emissions and air pollution. 


The documents below provide guidance for how the Regional Transportation District and transit associations may apply to receive a grant to participate in the program.


Applicants must attend the pre-bid conference on June 13th from 12-1pm MT to be eligible to apply.
Attendees may register here:




Action Date

Release of RFA

June 6

Mandatory pre-bid conference (virtual)

June 13, 12-1pm MT

Written questions due

June 14 by 5pm MT

Answers to questions posted on website (estimated)

June 16

Deadline to submit Applications

July 7 by 5pm MT

Anticipated Notice of Award Decisions

On a rolling basis by July 14


Program Policies and Requests for Application

Summit Stage bus