The White House is dedicating more than $1 billion toward reducing public bus emissions this year, a sum that administration officials say will help the country meet President Joe Biden’s goal of reducing greenhouse gas emissions by 50% by 2030.

Biden’s bipartisan infrastructure law carved out $5.5 billion to expand the Department of Transportation’s Low- and No-Emission Transit Vehicle Program, $1.1 billion of which will be allocated for 2022. Transportation will also direct $2.2 billion in unused American Rescue Plan funding to help 35 transit entities in 18 states keep tens of thousands of employees on the payroll.