In order to comply with the upcoming CARB’s amendments to their regulations and to streamline the evaluation of diesel engines subject to the AB 2588 "Hot Spots" program, CARB has developed health conservative screening risk assessment tables that engine owners can use to estimate their overall facility risk from diesel engine exhaust particulate matter (PM) from stationary diesel engines. Because cancer effects from diesel PM generally drive the risk from diesel engines, chronic and acute affects were not included in their process. Facilities are encouraged to estimate their risks and consider the information provided here before deciding on a Rule 1470 compliance option.