Civil Code of the Philippines: RETROACTIVITY OF LAWS Art. 4.

 RETROACTIVITY OF LAWS Art. 4. Laws shall have no retroactive effect, unless the contrary is provided. (3) General Rule: All statutes are to be construed as having only prospective operation Exceptions (1) When the law itself expressly provides Exceptions to Exception: (a) Ex post facto law (b) Impairment of contract (2) In case of remedial […]