Final answer:
USP 800 mandates entities dealing with Hazardous Drugs to review and update their HDs list annually and when new agents or dosage forms are introduced.
Step-by-step explanation:
USP 800 requires any entity that stores, compounds, prepares, transports, or administers Hazardous Drugs (HDs) to maintain a list of HDs used within the entity and to review the list at least annually, updating it whenever a new agent or dosage form is used. It is vital for entities to adhere to this standard in order to protect personnel and patients from potential exposure to hazardous drugs. The list serves as a safety measure by ensuring that all handling procedures for HDs are up-to-date and reflect the latest safety protocols.