44 CFR § 333.51
Rating authorizations
May 13, 2020
(a) A rating authorization is an official action granting specific priority rating authority that:
(1) Permits a person to place a priority rating on an order for an item not normally ratable under this part; or
(2) Authorizes a person to modify a priority rating on a specific order or series of contracts or orders.
(b) To request priority rating authority, see §333.21.