The public event marks CARB’s next step to promulgate new, lower NOx standards for heavy-duty engines and vehicles.
By: Arthur Foerster and Reed McCalib
Background
On Wednesday, January 23, 2019, the California Air Resources Board (CARB) will hold a public workshop in Sacramento focusing on potential regulatory changes that would lower oxides of nitrogen (NOx) emissions for new, on-highway heavy-duty vehicles and engines. Members of the public may attend the workshop in person or via webcast. (Event details are included at the end of this article.)
According to the agency’s public notice, CARB staff will discuss potential regulatory updates, challenges, and implementation strategies as the agency pushes for ever-lower emission standards. In particular, staff will discuss durability demonstration requirements, a supplemental certification test cycle for low-load operations, zero emission credits, in-use testing protocols, longer useful life and warranty periods, warranty claim reporting, lower particulate matter (PM) emissions, and NOx emissions tracking. Staff will also provide updates on ongoing low-NOx demonstration projects and will explain next steps in the rulemaking process.