49 Pa. Stat. § 1802 : Statutes (Unconsolidated) — MECHANICS' LIENS — MECHANICS' LIEN LAW OF 1963 — SEVERABILITY AND EFFECTIVE DATE — Effective date TEXT PDF This act shall take effect on the first day of January, 1964, but shall not apply to liens filed prior to said date except with respect to the practice and procedure prescribed by Article VII of this act. 49 P.S. § 1802 1963, Aug. 24, P.L. 1175, No. 497, art. VIII, § 802.