Each registered location shall store the controlled substances in a securely locked, substantially constructed cabinet. Keys to the storage area shall be restricted to those persons authorized by the department of fish and wildlife to possess and administer the drugs.

Schedule II controlled substances shall be stored in a safe or steel cabinet equivalent to a U.S. Government Class V security container.

In addition to field offices, the department of fish and wildlife may allow officers, biologists, and veterinarians to possess a supply of controlled substances for use in the field. The field supply shall be stored in a locked metal box securely attached to a vehicle. The designated officer, biologist, or veterinarian shall be responsible to ensure that the controlled substances are accounted for at all times. All receipts and use of controlled substances from the field supply shall be recorded in a bound logbook with sequentially numbered pages.