California Code, Health and Safety Code - HSC § 40710

Upon receipt of approval and pursuant to Section 40709, a certificate evidencing all approved reductions in the emissions of air contaminants shall be issued to the owner or owners of the emissions source, and such reductions shall continue to be banked until they have been used according to district regulations. The owner or owners of such approved reductions have the exclusive right to use them and to authorize their use. Certificates evidencing ownership of approved reductions issued by a district shall not constitute instruments, securities, or any other form of property.