Zero-Emission Regulation Deadline Schedules | TruckStop
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Below is a collection of zero-emission regulation deadline tables, for long-term at-a-glance or printing convenience. Please note that the content presented on this page is not meant to be a comprehensive description of regulatory requirements. Some tables may only show dates for specific options or sub-categories of a regulation, and therefore important regulation information may be excluded from this page.
It is highly recommended that you review the official program page and its available resources for each regulation, as the following information may be truncated for readability. To view a summary of the regulations listed on this page as well as links to more information such as factsheets and program pages, please click the name(s) of the regulation(s) below.
Innovative Clean Transit
| Zero-Emission Bus Purchase Schedule (ZEB % of Total New Bus Purchase) | ||
|---|---|---|
| Calendar Year | Large Transit | Small Transit |
| 2023-2025 | 25% | - |
| 2026-2028 | 50% | 25% |
| 2029+ | 100% | 100% |
Zero-Emission Airport Shuttle Regulation
| Zero-Emission Airport Fleet Percentage Requirement | |
|---|---|
| Year | Fleet Percentage |
| 2028 | 33% |
| 2036 | 100% |
Advanced Clean Trucks Regulation
| Manufacturer Zero-Emission Sales Percentage Requirement | |||
|---|---|---|---|
| Model Year | Class 2b-3 | Class 4-8 | Class 7-8 |
| 2024 | 5% | 9% | 5% |
| 2025 | 7% | 11% | 7% |
| 2026 | 10% | 13% | 10% |
| 2027 | 15% | 20% | 15% |
| 2028 | 20% | 30% | 20% |
| 2029 | 25% | 40% | 25% |
| 2030 | 30% | 50% | 30% |
| 2031 | 35% | 55% | 35% |
| 2032 | 40% | 60% | 40% |
| 2033 | 45% | 65% | 40% |
| 2034 | 50% | 70% | 40% |
| 2035 | 55% | 75% | 40% |
Advanced Clean Fleets Regulation
California has withdrawn its request for a waiver and authorization for the addition of the Advanced Clean Fleets (ACF) Regulation to its emissions control program. At this time, CARB is evaluating next steps. CARB is not enforcing the existing portions of the ACF Regulation that require a federal waiver or authorization, such as the portions of the ACF Regulation that apply to high priority and drayage fleets. However, not all elements of the ACF Regulation require a federal waiver or authorization. The state and local government fleets portion of the ACF Regulation remains unaffected. Because CARB is committed to reducing air pollution to protect public health, we encourage affected industries to continue reducing their emissions and we look forward to continued partnership in these efforts.
ACF: State & Local Government
| ACF State & Local Governments Model Year Schedule Summary | |
|---|---|
| 2024-2026 | 50% of purchases must be ZEV or near-zero emission vehicles (NZEV) |
| January 1, 2027 | All purchases must be ZEV or NZEV |
| Optional ZEV Milestone Phase-In | |||||
|---|---|---|---|---|---|
| Zero-Emission Fleet Percentage | 10% | 25% | 50% | 75% | 100% |
| Group 1: Box trucks, vans, 2-axle buses, yard trucks, light-duty package delivery vehicles | 2025 | 2028 | 2031 | 2033 | 2035 |
| Group 2: Work trucks, day cab tractors, 3-axle buses | 2027 | 2030 | 2033 | 2036 | 2039 |
| Group 3: Sleeper cab tractors and specialty vehicles | 2030 | 2033 | 2036 | 2039 | 2042 |
Zero-Emission Powertrain Certification Regulation
| Zero-Emission Powertrain Certification Requirement | |
|---|---|
| Year | Regulation |
| 2024 | Advanced Clean Trucks Regulation |
| 2026 | Zero-Emission Airport Shuttle Regulation |
Zero-Emission Transport Refrigeration Unit (TRU) Regulation
| Phase-in Compliance Schedule for Zero-Emission Truck TRU Fleet Requirement | |||||||
|---|---|---|---|---|---|---|---|
| Compliance deadline as of December 31 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 |
| Fleet with 1 Truck TRU | - | - | - | 1 | 1 | 1 | 1 |
| Fleet with 2 Truck TRUs | - | 1 | 1 | 1 | 2 | 2 | 2 |
| Fleet with 3 Truck TRUs | - | 1 | 1 | 2 | 2 | 3 | 3 |
| Fleet with 4 Truck TRUs | 1 | 1 | 2 | 2 | 3 | 4 | 4 |
| Fleet with 5 Truck TRUs | 1 | 2 | 2 | 3 | 4 | 5 | 5 |
| Fleet with 6 Truck TRUs | 1 | 2 | 3 | 4 | 5 | 6 | 6 |
| Fleet with 7 Truck TRUs | 15% | 30% | 45% | 60% | 75% | 90% | 100% |