37 Pa. Code § 21.26 – Certified agent prohibitions/restrictions.

(a) Unauthorized use. No certified agent shall permit any other person to possess or otherwise physically control his certification card.
(b) Identification. Every certified agent shall carry his certification card on his person while armed with a lethal weapon on duty or going to or from duty while armed.
(c) Display of certification. A certified agent shall exhibit his certification card for inspection by a law enforcement officer on demand.
(d) Carrying firearms. The issuance of a certification card to a privately employed agent does not grant the agent the right or privilege to carry, possess, own, or have under his control a firearm contrary to 18 Pa.C.S. § § 6101—6120 (relating to Uniform Firearms Act).