California Air Resources Board

Achieving California's long‑term air quality, climate, and public health goals will require a transition from conventional combustion technologies to zero‑emission technologies everywhere feasible and near zero‑emission technologies powered by clean, low‑carbon renewable fuels everywhere else.  The Zero-Emission Powertrain Certification Regulation (ZEPCert) is one of several programs the California Air Resources Board (CARB) has developed to help advance California's transition to zero‑emission technologies. ZEPCert was developed to support current and future advanced‑technology measures applicable to medium‑ and heavy‑duty vehicles, by helping ensure that zero‑emission technologies being deployed are able to meet the reliability and performance expectations of California fleets. The ZEPCert measure was adopted by the Board in June 2019.