Final answer:
Physicians registered to dispense controlled drugs are required to maintain an inventory for 2 years after the date of registration.
Step-by-step explanation:
Physicians registered to dispense controlled drugs are required by law to maintain an inventory of the drugs. The inventory must be maintained for 2 years after the date of registration.
Keeping an inventory of controlled drugs is important for accountability and ensuring patient safety. By maintaining a record of the drugs, physicians can track their usage, monitor for potential abuse or diversion, and maintain proper records for legal and regulatory purposes.