The Los Angeles County Metropolitan Transportation Authority (Metro) Board has approved free rides on all 170 routes and six major rail lines of its Metro Bus and Rail System on Earth Day on Sunday, April 22, Metro announced.

Bus fare boxes will be deactivated and all train station fare gates will be opened from 12:01AM to 11:59PM, including the Blue Line.

“Our commitment to create a more sustainable future starts with transportation,” Los Angeles Mayor and Metro Board Chair Eric Garcetti sad in a statement.“By making transit free on Earth Day, Angelenos can be part of the journey to clean the air we breathe and keep our planet healthy.”

California’s transportation sector is the largest source of greenhouse gases in the state, contributing to 37 percent of its greenhouse gas emissions, according to Metro. While greater Los Angeles has improved air quality, it still violates the federal ozone standard 100 days or more every year.

“We encourage L.A. County residents to do something nice for our Mother (Earth),” Metro CEO Phillip A. Washington said in a statement. “Residents can save gas and parking money and ride free on Metro to beaches, museums and other family-friendly destinations. If you enjoy your transit experience, we invite you to try our system to take other adventures during the year as we continue our efforts to make Metro the best transit system in the United States.”

Metro’s 2,438 transit buses run on clean-burning compressed natural gas, while the agency has committed to converting its fleet to all zero-emission buses by 2030. The 105-mile Metro Rail system already operates on electric power, according to Metro.

For more information on Metro’s environmental policies and programs, visit the website here.

Asia Morris is a Long Beach native covering arts and culture for the Long Beach Post. You can reach her @hugelandmass on Twitter and Instagram and at [email protected].