Section 4
[41A . Powers of Central Go vemment as to movements of timber across customs frontiers.---Notwithstanding anything in section 4 1 , the Centri.'.I Governnment may muke rules to prescribe the route by which alone timber or other forest-produce mLy be imported, exported or mov1::d into or from 5 [ the territories to w~ich this Act extends ] l\ny across, customs frontier as defined by the Centr:d Government and any rules mi'de under section 41 shall have effect subject to the rules made under this section.]