California Air Resources Board

Last updated October 13, 2022.

Frequently Asked Questions for Compliance with the TRU ATCM (Español):  Frequently Asked Questions (FAQ) document on the TRU ATCM and the 2022 Amendments in a question and answer format.

Refrigerant Disposal:  Federal requirements (section 608 of the Clean Air Act) for recovery and recycling of ozone depleting refrigerants during servicing and disposal of TRUs.

Overview:  Diesel Exhaust and Health:  Diesel particulate matter and the health risks associated with it.  Environmental effects are also discussed.