https://www.ibm.com/docs/en/ims/15.3.0?topic=parameters-rvfy-parameter-procedures
IMS 15.3 - System definition - RVFY= parameter for procedures
Use the RVFY= parameter in procedure to specify whether password reverification is activated (Y) or not (N). Valid values are Y, or N. The default is N.
imssystemdefinitionparameterprocedures