Section 5501 - Scope of chapter(a) General ruleAn action, proceeding or appeal must be commenced within the time specified in or pursuant to this chapter unless, in the case of a civil action or proceeding, a different time is provided by this title or another statute or a shorter time which is not manifestly unreasonable is prescribed by written agreement.(b) Uniform Commercial CodeThe provisions of Title 13 (relating to commercial code), to the extent that they are inconsistent with this chapter, shall control over the provisions of this chapter.(c) Equitable matters Nothing in this chapter shall modify the principles of waiver, laches and estoppel and similar principles heretofore applicable in equitable matters.1976, July 9, P.L. 586, No. 142, § 2, effective 6/27/1978. As amended 1978, April 28, P.L. 202, No. 53, § 10 (61.1), effective 6/27/1978; 1979, Nov. 1, P.L. 255, No. 86, § 5, effective 1/1/1980; 1980, Oct. 5, P.L. 693, No. 142, § 501(a), effective in 60 days; 1982, Dec. 20, P.L. 1409, No. 326, art. II, § 201, imd. effective; 1996, July 11, P.L. 607, No. 104, § 4, effective in 60 days.