There is one summary for H.R.5438. Bill summaries are authored by CRS.

Shown Here:
Introduced in House (05/27/2010)

Municipal Fleet Modernization Act of 2010 - Directs the Administrator of the Environmental Protection Agency (EPA) to update and publish annually in the Federal Register a list of vehicles that satisfy requirements for certification as low emission and energy-efficient vehicles and so may be allowed by states to use high occupancy vehicle (HOV) lane highways.