California Code, Health and Safety Code - HSC § 11480.3

(a) The panel may withdraw approval from a research project for reasonable cause.

(b) Prior to withdrawing approval, the panel shall communicate its concerns in a written notice of pending withdrawal of approval to the head of the research project.  The notice shall prescribe a course of action to address the concerns of the panel and provide a reasonable period in which to effect that cure.

(c) Approval may be reinstated once the concerns raised in the notice have been resolved to the reasonable satisfaction of the panel.

(d) Upon withdrawal of its approval, the panel shall notify the head of the research project to return or destroy any quantities of Schedule I or II controlled substances pursuant to any applicable state and federal regulations regarding the return or destruction of controlled substance research samples.