Any nonprofit charitable institution holding a permit on Form 5150.9, and receiving alcohol from the General Services Administration under the provisions of 26 U.S.C. § 5688(a)(2)(B), shall include any quantity of alcohol received in computing the quantity of tax-free alcohol that may be procured under its permit during the calendar year. The alcohol, on receipt, shall be placed in the storage facilities prescribed in § 22.91 and kept there under lock until withdrawn for use.