SAN DIEGO COUNTY AIR POLLUTION CONTROL DISTRICT
RULE 20.8 - SPECIAL OFFSET REQUIREMENT RELATING TO BANKING
Any person who has applied for and received a Class A or Class B ERC for an equipment shutdown under Rules 26.0 through 26.9 shall offset any emissions increase of the same pollutant for which a new permit or amended permit is required of that person, not to exceed the amount of the ERC, if the permit unit from which the emissions will increase manufactures products or processes materials for the same market or use as the products manufactured or materials processed by the equipment which was shutdown. The offset may be obtained from the cancellation of ERCs or from offsets qualifying under Rule 20.1. If ERCs are to be cancelled, Class B ERCs may not be cancelled to offset an emissions increase resulting from equipment which is identical or similar to equipment which was shutdown and for which Class A ERCs were issued. This requirement applies whether or not a source is of sufficient size to be subject to the requirements of Rules 20.2 through 20.7. Nothing in this rule removes or diminishes any requirement for offsets under any other rule.