25 Pa. Code § 105.21a
Except for dams, water obstructions and encroachments authorized under §§ 105.12, 105.64 and Subchapter L (relating to waiver of permit requirements; emergency permit; and general permits), or as small projects, the Department will publish a notice in the Pennsylvania Bulletin upon receipt of an application and again upon the issuance or denial of a permit by the Department.
25 Pa. Code § 105.21a
The provisions of this §105.21a issued under the Dam Safety and Encroachments Act (32 P. S. §§ 693.1-693.27); The Clean Streams Law (35 P. S. §§ 691.1-691.1001); section 7 of the act of June 14, 1923 (P. L. 704, No. 294) (32 P. S. § 597); sections 514, 1901-A, 1908-A, 1917-A and 1920-A of The Administrative Code of 1929 (71 P. S. §§ 194, 510-1, 510-8, 510-17 and 510-20); and the Flood Plain Management Act (32 P. S. §§ 679.101-679.601).