I had my "facts" wrong when I stated I worked for a Gov/Fed agency, I apologize. The place I work AT is owned and operated by a PRIVATE company.It doesn't matter who owns the building/property. If a Fed agency leases a property, it is off-limits and illegal. Where I lived in MA, the USPO was leased property, I was friends with the Postmaster who shared that info with me, and thus Fed property for the purposes of convicting someone possessing a gun on that property. In NH, the local USPO is a leased storefront in a shopping mall and therefore the parking lot is OK to possess a gun and only the USPO storefront is illegal.
The products they deal with are potentially more than that. I don't know how much/if that changes the terms but that what I've got to work with.
Christ. I'm "just" a truck driver.. maybe I should be looking elsewhere..