52 Pa. Code § 63.213 – Duties of the OLSP if notified by the prospective NLSP that an interfering station exists at a location where existing local service is provided by the OLSP and the applicant has shown proof of identity and of ownership or right of occupancy.

(a) Within 3 working days of the notification, the OLSP shall issue a termination notice to the customer of record in the OLSP’s billing system. The notice of termination must state the reason for termination, date of termination and what the customer of record is required to do to prevent termination. The termination date must be 7 days from the date of the mailing of the notice by first class mail.
(b) If the customer of record does not contact the OLSP, the OLSP shall terminate the customer’s service and take appropriate action to release the customer’s facilities to the prospective NLSP.
(c) If the customer of record contacts the OLSP by the termination date and does not agree to the termination of service, the OLSP shall notify the prospective NLSP of the inability of the OLSP to release the facilities to be used by the prospective NLSP.

This section cited in 52 Pa. Code § 63.201 (relating to general migration standards).