333 Safeguarding Registered Articles and Receipts
333.1 Employee Accountability
Acceptance employees must keep registered mail in a secure place until it is
billed to the designated dispatch employee. Individual employee
accountability of registered mail must be maintained at all times.
333.2 Secure Place
Post offices with separate registry units must keep registered mail in those
units until it is dispatched. Post offices and postal units without separate
registry units or cages must keep registered mail in a locked drawer, cabinet,
or safe until dispatch time.