An approved laboratory wishing to renew its approval under this chapter shall, not more than 6 months nor less than 4 months prior to the expiration of the approval, submit an application under § 1171a.23 (relating to approval of laboratories) and update the information required to be submitted with the application as necessary.
28 Pa. Code § 1171a.25
This section cited in 28 Pa. Code § 1171a.22 (relating to laboratories generally).