Output queues are created with a level of security determined by the value of the AUT parameter on the Create Output Queue (CRTOUTQ) command. To work with the spooled files on that output queue, you must have the appropriate authority for that output queue (as specified in the AUT parameter). For example, holding or releasing a spooled file might require one level of authority while reading the contents of that spooled file might require a higher level of authority.
For more information on spooled file and output queue security, see the Security topic.