OK, someone has the '14 changes??
Below is from the 2014 DRAFT...
406.12 Tamper Resistant Receptacles. [ROP 18–41a]
(A) Dwelling Units. In all areas specified in 210.52, all nonlocking-type 125-volt, 15- and 20-ampere receptacles shall be listed tamper-resistant receptacles.
(B) Guest Rooms and Guest Suites of Hotels and Motels. All nonlocking-type 125-volt, 15- and 20-ampere receptacles located in guest rooms and guest suites of hotels and motels shall be listed tamper-resistant receptacles.
(C) Child Care Facilities. In all child care facilities, all nonlocking-type 125-volt, 15- and 20-ampere receptacles shall be listed tamper-resistant receptacles.
Exception to (A), (B), and (C): Receptacles in the following locations shall not be required to be tamper-resistant:
(1) Receptacles located more than 1.7 m (5 1⁄2 ft) above the floor.
(2) Receptacles that are part of a luminaire or appliance.
(3) A single receptacle or a duplex receptacle for two appliances located within dedicated space for each appliance that, in normal use, is not easily moved from one place to another and that is cord-and-plug connected
in accordance with 400.7(A)(6), (A)(7), or (A)(8).
(4) Nongrounding receptacles used for replacements as permitted in 406.4(D)(2)(a).
I only carry TR receptacles on my truck these days...