New California Air Quality Rules Are Reshaping Warehouse Truck Operations Across Riverside County
Warehouse operators and trucking companies throughout Riverside County are navigating a complex new regulatory landscape as the South Coast Air Quality Management District’s Rule 2305 fundamentally changes how logistics operations must manage their environmental impact. This groundbreaking regulation, officially known as the Warehouse Actions and Investments to Reduce Emissions (WAIRE) Program, is the first-of-its-kind rule in the nation targeting warehouse facilities as indirect sources of truck emissions.
Understanding Rule 2305’s Impact on Riverside County Operations
Rule 2305 was adopted by the South Coast AQMD in May 2021 and applies to owners and operators of existing and new warehouses within the South Coast Air Basin, including portions of Los Angeles, Riverside, and San Bernardino counties, and all of Orange County. The rule specifically targets warehouse facilities within the SCAQMD district that have at least 100,000 square feet of indoor floor space in a single building.
Under Rule 2305, warehouse operators must calculate the total annual number of truck trips, with tractors and tractor-trailers weighted 2.5 times higher than smaller, straight trucks due to their higher emissions. The rule refers to this combined truck count as Weighted Annual Truck Trips (WATTs).
The Points-Based Compliance System
Warehouse operators must earn a specific number of points called WAIRE Points to offset the number of truck trips to and from warehouses under their control. The number of WAIRE Points a warehouse operator must collect each year is calculated using Weighted Annual Truck Trips to or from the warehouse.
WAIRE Points may be earned by completing emissions-reducing actions in SCAQMD’s WAIRE Menu, completing a Custom WAIRE Plan, paying a mitigation fee of $1,000 per Point, or any combination of the three. Points can be accumulated in several ways as laid out in the rule’s WAIRE Menu, including having zero and near-zero-emission trucks visit the warehouse, installing onsite solar panels, or installing MERV 16 or greater filters.
Phased Implementation Timeline
Rule 2305 is being phased in over three years, applying to larger warehouses first. The Initial Compliance Period began on January 1, 2022 for warehouses 250,000 square feet or more, on January 1, 2023 for warehouses 150,000 feet or more, and on January 1, 2024 for warehouses 100,000 square feet or more.
Officials phased in the rule over three years, starting with the largest warehouses, with 2026 being the first year all warehouses subject to the rule must comply. This means that many Riverside County warehouse operations are now fully subject to the rule’s requirements.
Compliance Requirements and Reporting Obligations
Warehouse operators must submit a one-time Initial Site Information Report as well as Annual WAIRE Reports detailing facility operations and compliance approaches, due annually on January 31. The truck trip data needs to be accurately collected using a method that is reliable and verifiable since it will be used to determine a warehouse operator’s WAIRE Points Compliance Obligation. Warehouse operators are responsible for maintaining data to support the truck trip count, and adequate records must be maintained for seven years.
Impact on Trucking Operations and Fleet Compliance
Rule 2305 requires warehouse operators to track and record every truck trip coming in and out of the facility to monitor the indirect emissions. Every time an internal combustion truck enters their facility, warehouses can face potential fees. Each truck trip from a tractor has a 2.5 times higher compliance impact than straight trucks due to their higher emissions.
As a result, warehouse owners and operators may put pressure on fleets to use low- or zero-emission vehicles when visiting their locations. This creates a ripple effect throughout the trucking industry, as fleet operators must consider emissions compliance when servicing warehouses in Riverside County and the broader South Coast Air Basin.
The Role of Emissions Testing and Vehicle Compliance
For trucking companies and fleet operators serving Riverside County warehouses, maintaining proper emissions compliance has never been more critical. Regular emissions testing and vehicle maintenance ensure that trucks meet the standards that can help warehouse operators earn WAIRE points when cleaner vehicles visit their facilities.
Professional emissions testing services, such as those provided by certified facilities offering Clean Truck Check Riverside County, CA, play a crucial role in helping fleet operators maintain compliance with both state emissions standards and the new warehouse-focused regulations.
Financial Implications and Enforcement
Warehouses that do not comply with the rule face monetary penalties that could amount to US$11,710 per day. Of the 2,000 warehouses in the region that the rule applies to, more than two-thirds are non-compliant, according to the South Coast AQMD. If mitigation fees are paid, 1 WPCO is equal to $1,000.
Looking Ahead: Environmental and Economic Impact
Four years ago, the district expected the rule would cut nitrogen oxide emissions by 1.5 to 3 tons a day. In 2024, the rule was responsible for removing 1.47 tons a day of nitrogen oxides, showing that the regulation is achieving measurable environmental benefits.
Through implementation of the WAIRE Program, measurable emissions reduction benefits have been achieved by accelerating the deployment of cleaner trucks, battery-electric yard equipment, on-site charging and infrastructure investments, and cleaner last-mile delivery operations, delivering real-world benefits including reduced diesel pollution.
As Rule 2305 continues to reshape warehouse and trucking operations across Riverside County, businesses must adapt to this new regulatory environment. The rule represents a significant shift toward holding warehouse facilities accountable for the indirect emissions they generate through truck traffic, ultimately driving the adoption of cleaner transportation technologies and practices throughout Southern California’s massive logistics sector.