What is curative statute?

A curative statute is enacted to cure defects in a prior law or to validate legal proceedings, instruments or acts of public authorities[,] which would otherwise be void for want of conformity with certain existing legal requirements.” (Erectors, Inc. v. NLRC, 326 Phil. 640, 647 [1996]). Simply put, curative laws are enacted to validate acts done that otherwise would be invalid under existing laws.