Public utilities furnishing electric service to the public shall file their underground construction, specification standards and revisions thereto with the Commission's Bureau of Fixed Utility Services. These standards shall be filed within 20 working days from their date of adoption or revision.
52 Pa. Code § 57.85
This section cited in 52 Pa. Code § 57.19 (relating to line extensions); 52 Pa. Code § 57.88 (relating to subdivisions); and 52 Pa. Code § 69.43 (relating to notice lead-time).