1 Pa. Code § 35.37
A person upon whom an order to show cause has been served under § 35.14 (relating to orders to show cause) shall, if directed so to do, respond to the same by filing within the time specified in the order an answer in writing. The answer shall be drawn so as specifically to admit or deny the allegations or charges which may be made in the order, set forth the facts upon which respondent relies and state concisely the matters of law relied upon. Mere general denials of the allegations of an order to show cause which general denials are unsupported by specific facts upon which respondent relies, will not be considered as complying with this section and may be deemed a basis for entry of a final order without hearing, unless otherwise required by statute, on the ground that the response has raised no issues requiring a hearing or further proceedings. A respondent failing to file answer within the time allowed shall be deemed in default, and relevant facts stated in the order to show cause may be deemed admitted.
1 Pa. Code § 35.37
This section cited in 1 Pa. Code § 35.14 (relating to orders to show cause); 4 Pa. Code § 607a.7 (relating to answer to order to show cause); 7 Pa. Code § 131.22 (relating to special actions); 7 Pa. Code § 179.14 (relating to answers to complaints, petitions, motions and other filings requiring a response); 12 Pa. Code § 11.9 (relating to answers to complaints and petitions); 22 Pa. Code § 233.115 (relating to notice and hearings); 22 Pa. Code § 351.1 (relating to purpose and scope); 28 Pa. Code § 101.121 (relating to demand for hearing); 28 Pa. Code § 709.18 (relating to hearings); 28 Pa. Code § 711.18 (relating to hearings); 28 Pa. Code § 717.13 (relating to hearings); 28 Pa. Code § 1230.44 (relating to answers to Orders to Show Cause, orders or other petitions filed by the Office); 34 Pa. Code § 3a.9 (relating to suspension or revocation of Pennsylvania inspector commission); 34 Pa. Code § 3a.99 (relating to notice of deficiency); 34 Pa. Code § 13.52 (relating to notice of deficiency); 34 Pa. Code § 49.14 (relating to answer to order to show cause); 34 Pa. Code § 60.11 (relating to enforcement); 34 Pa. Code § 111.15 (relating to no other pleadings allowed); 34 Pa. Code § 121.27 (relating to orders to show cause); 34 Pa. Code § 129.1602 (relating to order to show cause/penalties); 34 Pa. Code § 131.33 (relating to answers except answers to petitions for joinder and challenge proceedings); 34 Pa. Code 131.121 (relating to penalty proceedings initiated by a party); 34 Pa. Code § 131.122 (relating to other penalty proceedings); 34 Pa. Code § 401.14 (relating to decertification or refusal to certify); 34 Pa. Code § 501.8 (relating to hearings/appeals); 40 Pa. Code § 17.13 (relating to protests/intervention procedure); 43 Pa. Code § 7.12 (relating to discipline and discharge); 52 Pa. Code § 1005.41 (relating to answers to complaints, petitions, motions and other filings requiring a response); 58 Pa. Code § 51.24 (relating to answer to order to show cause); 58 Pa. Code § 493a.5 (relating to answers to complaints, petitions, motions and other filings requiring a response); and 61 Pa. Code § 703.2 (relating to petition content).