1 Pa. Code § 35.40
A participant may file an answer to an amendment, modification or supplement to an application, complaint, petition or other pleading. If made, answers shall be filed within 15 days after the date of service of the amendment, modification or supplement, unless for cause the agency head or presiding officer with or without motion shall prescribe a different time.
1 Pa. Code § 35.40
This section cited in 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); 34 Pa. Code § 111.15 (relating to no other pleadings allowed); 34 Pa. Code § 131.33 (relating to answers except answers to petitions for joinder and challenge proceedings); 34 Pa. Code § 131.35 (relating to amendments to pleadings); 34 Pa. Code 131.36 (relating to joinder); 34 Pa. Code § 131.57 (relating to compromise and release agreements); 34 Pa. Code § 131.121 (relating to penalty proceedings initiated by a party); 40 Pa. Code § 17.13 (relating to protests/intervention procedure); 52 Pa. Code § 5.65 (relating to answers to amendments of pleadings); 52 Pa. Code § 1005.44 (relating to answers to amendments of pleadings); 55 Pa. Code § 41.61 (relating to filing of petitions to intervene); 58 Pa. Code § 493a.5 (relating to answers to complaints, petitions, motions and other filings requiring a response); 58 Pa. Code § 493a.7 (relating to amendments and withdrawal of pleadings); and 61 Pa. Code § 703.2 (relating to petition content).