CA AB823

Prohibits the California High-Speed Rail Authority from using any local, state, federal, public, or private funding to purchase, lease, operate, or maintain passenger or freight trains powered by diesel engines or other fossil fuel combustion engines

Prevents the authority from allowing diesel or fossil fuel-powered trains to operate on authority-owned rail infrastructure designed for speeds exceeding 125 miles per hour

Exempts maintenance and construction trains, as well as trains used during emergency situations, from these prohibitions