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Stationary (and Portable) Agricultural Engines

January 25, 2018 – Portable Spray Rigs used exclusively in agricultural applications are now exempt from District registration requirements. Please see the Compliance Advisory for more information.

Owner/Operators of existing agricultural engines over 50 horsepower were required to register their diesel engines with the District by March 1, 2008.  New engine installations must be registered within 90 days of installation.  For more information:

Compliance Advisory regarding installing new and replacement ag engines (2022)Fact Sheet (2022)NESHAP Compliance Advisory

Applications:

Form 1 - General Information Application (updated 7/2024)Form 2 – Engine Information ApplicationForm 2a – Ag Engines Additional LocationsForm 323 – Low Use Application

Please contact the District office for more information regarding diesel engine registration.

Other links relevant to this topic:

District Rule 1001– ATCM for Stationary Compression Ignition Engines Used in Agricultural OperationsTable of EPA/CARB Tier StandardsCARB Stationary Diesel Air Toxic Control Measure Page