This is what my Google search came up with from Family Handyman. So it looks like all in a home.
Tamper-Resistant Receptacles (TR): All 15- and 20-ampere receptacles in a home are now required to be tamper-resistant. Tamper-resistant receptacles have built-in shutters that prevent children from inserting foreign objects in the receptacle slots. The vast majority of electrical burns and shocks occurred among children 6 years of age or less. Tamper-resistant receptacles are also now required in hotel rooms, child care facilities, preschools, elementary education facilities, waiting areas in medical and dental clinics, dormitories, and waiting areas in any place of assembly, anywhere children may not be closely supervised.