Section 4. Impact on existing law.
Nothing in this act shall affect the scope, effect or applicability of the following:
(1) Section 1 of the act of May 1, 1913 (P.L.155,
No.104), entitled "An act regulating the letting of certain
contracts for the erection, construction, and alteration of
public buildings."
(2) The act of August 15, 1961 (P.L.987, No.442), known
as the Pennsylvania Prevailing Wage Act.
(3) The act of December 20, 1967 (P.L.869, No.385),
known as the Public Works Contractors' Bond Law of 1967.
(4) The act of March 3, 1978 (P.L.6, No.3), known as the
Steel Products Procurement Act.