12 Pa. Code § 145.52
An evaluation agency shall approve a set of building system documentation for purposes of this chapter if the evaluation agency determines that the building system documentation conforms to the applicable requirements of the applicable codes and standards adopted under §§ 145.41, 145.42 and 145.44 (relating to adoption of standards; alternate standards; and adoption and effective dates-code amendments). Approval of building system documentation shall be evidenced by the stamp of approval of the evaluation agency, affixed on each sheet of the building system documentation and signed by a designated employe of the evaluation agency. Each stamp shall show the date of approval of each sheet of the building system documentation to which it is affixed. Each sheet constituting the approved building system documentation shall have a separate identification number. The Department may approve alternate methods for identifying approved building system documentation. The evaluation agency shall provide the manufacturer and the Department and inspection agency, if other than the evaluation agency, with an approved building system documentation.
12 Pa. Code § 145.52
This section cited in 12 Pa. Code § 145.1 (relating to definitions); 12 Pa. Code § 145.53 (relating to variations); 12 Pa. Code § 145.54 (relating to Building System Approval Report and Summary); and 12 Pa. Code § 145.55 (relating to general requirements for approval of amendments to building system documentation).