A local air district approved a rule requiring warehouses to adopt clean technologies or pay a mitigation fee.

By Joshua T. Bledsoe and Jennifer Garlock

At a contentious board hearing on May 7, 2021, the South Coast Air Quality Management District (SCAQMD) approved a first-in-the-nation rule to regulate trucking emissions from warehouses by a 9-4 vote. Rule 2305, the Warehouse Indirect Source Rule (ISR), establishes the Warehouse Actions and Investments to Reduce Emissions (WAIRE) Program to reduce emissions associated with warehouse activity. The WAIRE Program essentially requires warehouse operators to take actions to electrify warehouse activities and the trucks that visit warehouses in order to reduce nitrogen oxides (NOx) and diesel particulate matter (DPM) emissions. As previewed in a 2019 Latham blog post, despite the warehouse sector’s limited control over the types of trucks servicing its facilities (warehouses generally do not own or operate trucking fleets), the ISR imposes obligations on warehouses to indirectly reduce trucking emissions. The WAIRE Program applies to warehouses with more than 100,000 square feet of warehouse space in a single building, and will phase in over three years based on warehouse size, with the largest warehouses (i.e., more than 250,000 square feet) having the earliest compliance period.