U.S. Department of Energy - Energy Efficiency and Renewable Energy
Alternative Fuels and Advanced Vehicles Data Center
Washington Incentives and Laws
Idle Reduction Tax Incentives
Tax incentives are available for the infrastructure and services that support the use of auxiliary power for heavy-duty vehicles weighing more than 14,000 pounds through on-board or stand-alone electrification systems. These incentives offer a business and occupation tax deduction and 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)