California Air Resources Board

This tool is part of the Advanced Clean Fleets (ACF) knowledge base containing questions and answers (Q&A) about the Regulation. The information presented in this tool is updated regularly. The Q&A is searchable by typing in search terms which can be cleared by selecting the "X" or reset using "Reset." Alternatively, or in addition, Q&A can be filtered by selecting one or more of the major topic groups: Compliance Options; Exemptions and Extensions; General; and Reporting and Recordkeeping. Access these topic groups by selecting the dropdown/caret icon which opens and closes the list. All topics is the default upon startup and once the search terms are cleared. Hyperlinks, shown as underline font, will take you to more resources once selected.

This document is provided to assist regulated entities in complying with the Advanced Clean Fleets regulation. In the event any discrepancy exists between this document and the Advanced Clean Fleets regulation, the regulatory text of the Advanced Clean Fleets regulation applies.