The CD and PATH commands define the search order of user REXX libraries when you attempt to load an exec. After the current directory (set by the CD command) is searched, all directories specified with the PATH command are searched, then VSE sublibraries specified on the SETSYS AUTHCLIB and SETSYS AUTHELIB commands are searched, followed by VSE Librarian members with a member type of PROC in the LIBDEF PROC search chain for the CICS partition.