A licensee who ceases performing licensed activities shall promptly request the Board in writing to place the license in escrow. An escrowed license may be reactivated upon written application and payment of the license renewal fee prescribed in § 7.2 (relating to fees), unless the period of escrow occurred within a biennial interval.
49 Pa. Code § 7.44
The provisions of this §7.44 issued under sections 5 and 11 of the act of May 3, 1933 (P. L. 242, No. 86) (63 P. S. §§ 511 and 517).