Maintaining Our Supply of Diesel Exhaust Fluid Program

Overview

The Maintaining Our Supply of Diesel Exhaust Fluid Program is part of a comprehensive investment to enhance resilience of the domestic Diesel Exhaust Fluid (DEF) market. The objectives of the competitive grants program are: to support sovereign capability in manufacturing to produce TGU for the domestic DEF market in the period 2023 to mid-2026  produce TGU that is compliant with the ISO 22241 specification for the production of DEF, or as certified by Original Equipment Manufacturers (OEMs) for use as a DEF. Learn more about the policy that supports this program.