All stationary internal combustion engines larger than 50 hp must:

Obtain a BAAQMD Permit to Operate

And if it is a diesel engine, comply with the BAAQMD-administrated Statewide Air Toxics Control Measure (ATCM) for Stationary Diesel Engines (Portable engines are exempt from the stationary ATCM)

Useful Links:

CARB's Airborne Toxic Control Measures (ATCM) for Stationary Diesel Engines

and for Portable Diesel Engines

Stipulated Enforcement Program For Portable Diesel Engines

Registration Program for Agricultural Diesel Engines

Contacts:
Randy Frazier	(415) 749-4672	rfrazier@baaqmd.gov
Doug Hall	(415) 749-4706	dhall@baaqmd.gov
Kenneth Lim	(415) 749-4710	klim@baaqmd.gov
Bob Nishimura	(415) 749-4679	bnishimura@baaqmd.gov
Greg Stone	(415) 749-4745	gstone@baaqmd.gov
Sheryl Wallace	(415) 749-4736	swallace@baaqmd.gov
Barry Young	(415) 749-4721	byoung@baaqmd.gov