VMS Help NCS Routines, NCS$END_CS, Argument  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 cs_id

    OpenVMS usage:identifier
    type:         longword integer (unsigned)
    access:       modify
    mechanism:    by reference
    Address of a longword that NCS uses to store a nonzero value
    identifying a collating sequence.

    The cs_id argument is required.