When a high-risk chemical is added to the CCO, which step is required?

• A. Ignore it until the next annual review.
• B. Publicize the change to all staff.
• C. Update the license and schedule with effective dates.
• D. Remove the chemical from storage.

Answer: (C)

Updating the license and schedule with effective dates is required because adding a high-risk chemical to the CCO changes what is legally allowed and under what controls. The license is the formal authorization, and the schedule lists the specific chemicals and their conditions. When a new high-risk chemical is added, recording it with the correct effective date ensures the regulations, handling procedures, storage requirements, and safety measures apply starting from that date. This creates a clear, auditable trail and keeps compliance up to date with the actual approvals and restrictions.

Ignoring the change until a future review delays necessary controls and could leave operations noncompliant. Simply publicizing the update to staff doesn’t legally modify the authorization or controls. Removing the chemical from storage would bypass the required regulatory update; instead, the proper step is to reflect the new status in the official documents with the applicable dates.