Section 3. Validation

3. Notwithstanding any judgment, decree or order of any court, anything done or purporting to have been done and any action taken or purporting to have been taken under or in relation to the said Rule 56(a) before the commencement of this Act including any decision or order made, executive instructions issued, or motice or pay in lieu of notice given or paid or ordered to be paid, retirement required or effected, or pension sanctioned or paid, shall be deemed to be and always to have been done or taken under or in relation to the said Rule 56 (a) as amended by this Act and to be and always to have been as valid as if the provisions of this Act were in force at all material times.