Comment Letter: Advanced Clean Fleets Regulation Amendments/15-Day Changes Apr 17, 2026 Comment Letters Agency: California Air Resources Board Subject: Comment Letter – Advanced Clean Fleets Regulation Amendments/15-Day Changes Letter excerpt: The Association of California Water Agencies (ACWA) appreciates the opportunity to provide comments on the proposed 15-day change amendments to the Advanced Clean Fleets (ACF) regulation (15-day changes) as required by Assembly Bill 1594 (Garcia, 2023) [AB 1594]. ACWA represents approximately 470 public water agencies that collectively deliver approximately 90 percent of the water in California for domestic, agricultural, and industrial uses. ACWA has participated in ACF since its conception, throughout its development, and now into this latest amendment stage. We support the state goals that ACF aspires to reach, and our members continue to view ACF as a key proceeding to advocate on behalf of public water agencies in to ensure that our role as essential public service providers is considered and reflected in ACF. We continue to believe that more work is needed beyond the 15-day changes to meet the goals of AB 1594 (Garcia, 2023) [AB 1594] and reflect the current market for medium-and heavy-duty (MHD) zero emission vehicles (ZEV), and are ready to continue working with CARB moving forward beyond this comment period. Download Comment Letter
