Washington Idle Reduction Laws and Incentives

State Incentives

Idle Reduction Tax Incentives

Tax incentives are available for the infrastructure and services that support the use of auxiliary power for vehicles with gross vehicle weight ratings of more than 14,000 pounds through on-board or stand-alone electrification systems. These incentives include a business and occupation tax deduction and a sales and tax exemption for machinery and equipment used to provide auxiliary power at truck stops. Sales and use tax exemptions are also available for parts and labor necessary to enable heavy-duty diesel trucks to accept power for onboard electrification systems. These exemptions expire July 1, 2015. (Reference Revised Code of Washington 82.04.4338, 82.08.815, 82.08.825, 82.15.815, and 82.12.825)

State Laws and Regulations

Idle Reduction Weight Exemption

The state's maximum weight limitations do not apply to a vehicle equipped with a fully functional idle reduction system designed to reduce fuel use and emissions from engine idling. The vehicle may exceed the weight limitations by up to 400 pounds. (Reference Washington Administrative Code 468-38-073)

Utilities/Private Incentives

Clean and Efficient Fleet Assistance

The Puget Sound Clean Air Agency has launched the Evergreen Fleets program, a comprehensive greening plan and certification system for fleets. Evergreen Fleets provides fleet managers with tools to help "green" public and private fleets, reduce pollution, and save money. Evergreen Fleets provides a step-by-step guide to identify the most effective way for fleet managers to green their fleets, including buying greener vehicles, switching to greener fuels, or improving fleet efficiency.