For the Good of the Order:
An article on the Military Benefits website states: As of January 1, 2020 all service-connected disabled Veterans, Purple Heart recipients, former prisoners of war (POW), and individuals designated as the primary family caregivers of eligible Veterans under the VAs Program of Comprehensive Assistance for Family Caregivers (PCAFC) can present their VHIC to gain entry to DoD and Coast Guard installations and some commissary stores; and at point of sale at commissaries, exchanges (AAFES, NEXCOM, MCX and CGX) and MWR retail activities to complete their transactions.
See the details on the Veterans Administration website.