Oklahoma: Sales Tax Handbook
Are Pollution Control Equipment subject to sales tax?
While Oklahoma's sales tax generally applies to most transactions, certain items have special treatment in many states when it comes to sales taxes. This page describes the taxability of pollution control equipment in Oklahoma. To learn more, see a full list of taxable and tax-exempt items in Oklahoma.
General Pollution Control Equipment
TAXABLE
In the state of Oklahoma, exemption applies to any machinery, equipment, fuels, and chemicals which are incorporated into and directly used or consumed in the process of treatment to substantially reduce the volume or harmful properties of hazardous waste at treatment facilities specifically permitted by the Hazardous Waste Management Act.
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