VMS Help START, /QUEUE, Qualifiers, /CPUDEFAULT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /CPUDEFAULT=time

    Defines the default CPU time limit for jobs in this batch
    execution queue. You can specify time as delta time, 0, INFINITE,
    or NONE. You can specify up to 497 days of delta time.

    If the queue does not have a specified CPUMAXIMUM time limit and
    the value established in the user authorization file (UAF) has
    a specified CPU time limit of NONE, either the value 0 or the
    keyword INFINITE allows unlimited CPU time. If you specify NONE,
    the CPU time value defaults to the value specified either in the
    UAF or by the SUBMIT command (if included). CPU time values must
    be greater than or equal to the number specified by the system
    parameter PQL_MCPULM.

    For information on specifying delta times, refer to the OpenVMS
    User's Manual or the online help topic DCL_Tips (subtopic Date_
    Time).