67 Pa. Code § 257.13
Within 30 days after each 6 month period ending April 30 and October 31 of each year, each mass transit operator shall submit a semiannual report to the Department on a form provided by or approved by the Department. The semiannual report shall include information contained in the records required by § 257.12 (relating to records of inspection) except information relating to specific vehicle components inspected or repaired and identification of the individual mechanic performing the inspections or repairs. The semiannual report shall also identify vehicles removed from or returned to service, vehicles permanently retired and new vehicles added to the inventory. A change in vehicle equipment numbers shall be reported at this time. Proposed revisions to any of the items required by §§ 257.9, 257.10 or 257.11 (relating to inspector qualification; inspection schedule; and inspection procedure manuals) shall be submitted with the semiannual report for Department approval.
67 Pa. Code § 257.13