37 Pa. Code § 21.16 – Exemption for retired police officers.

(a) An applicant who is a nondisability retired police officer of a Commonwealth municipality or the State Police shall be initially certified under the act, and need not meet the training and qualification standards or physical and psychological qualifications, if he was a full-time police officer for at least 20 years, retired in good standing and has assumed the duties of a privately employed agent on or before 3 years from the date of his retirement. If a retired police officer commences his duties as a privately employed agent after 3 years from the date of his retirement he must meet the physical and psychological requirements of the act for certification.
(b) A retired police officer who is initially certified shall not be required to pay the application fee, but he shall be required to pay the appropriate certification fee.
(c) The granting of the exemptions and certification is conditioned upon the applicant providing documentary proof of eligibility by completing and forwarding a police officer exemption application which is available, upon request, at a State Police station, except a Turnpike or Interstate station.

This section cited in 37 Pa. Code § 21.1 (relating to definitions); and 37 Pa. Code § 21.13 (relating to inital application procedure).