Section 1
Section 1. .The failure of any official or board to certify to the correctness of any declaration of real estate and of improvements and of the rental value of same for assessment purposes heretofore made by any owner thereof in accordance with the provisions of Act Numbered Fourteen hundred and fifty-five, as amended, shall in no way invalidate such declaration, and such declaration is hereby declared, and shall be regarded, as valid and— binding for assessment purposes, notwithstanding the lack of such certificate.