Enforcer configurations are all stored in the group that it belongs to. Click on the Enforcer Group, under tasks you will notice that there is an option to Export Properties/Settings. This will create a XML file.
The XML file is all you need. The next time you re-register your Enforcer with SEPM, Click on the new Enforcer Group and select Import Properties/Settings. All settings previously configured and exported will be ported in.
Once Enforcer receives this policy ID, remember to do a reboot on the Enforcer. ( The reboot is suggested due to my experience.)