An existing certifying official already has a Central Data Exchange (CDX) account and has certified Risk Management Plans (RMPs) for a facility in the past after submitting an Electronic Signature Agreement (ESA). When certifying an RMP for a new facility, is the certifying official required to sign another ESA for the new facility?

Yes, the certifying official must complete a new ESA to obtain a facility specific authorization code to access the new facility within CDX.  The ESA is used to verify the identity of the certifying official in the system.