1 Pa. Code § 35.54
A respondent may file with his answer a motion that the allegations in the complaint be made more definite and certain, the motion to point out the defects complained of and details desired. A respondent may also file with his answer a motion to dismiss a complaint because of lack of legal sufficiency appearing on the face of the complaint.
1 Pa. Code § 35.54
This section cited in 12 Pa. Code §11.11 (relating to motions); 34 Pa. Code §111.14 (relating to motions to quash); 34 Pa. Code §111.15 (relating to no other pleadings allowed); 34 Pa. Code §131.3 (relating to waiver and modification of rules); 34 Pa. Code §131.24 (relating to recusal of judge); 34 Pa. Code §131.33 (relating to answers except answers to petitions for joinder and challenge proceedings); 34 Pa. Code §131.36 (relating to joinder); 34 Pa. Code §131.53b (relating to bifurcation and motions for disposition of a petition); 34 Pa. Code §131.101 (relating to briefs, findings of fact and close of record); 34 Pa. Code §131.112 (relating to correction or amendment of decision); 34 Pa. Code §131.121 (relating to penalty proceedings initiated by a party); 37 Pa. Code §197.40 (relating to preliminary motions); 52 Pa. Code §5.101 (relating to preliminary objections); 52 Pa. Code §1005.71 (relating to motions); 55 Pa. Code §41.131 (relating to motions in general); and 61 Pa. Code §703.2 (relating to petition content).