§ 163. Recognition of tourist promotion agencies. The commissioner, upon investigation and receipt of certified copies of such resolutions as may be necessary to satisfy him that a tourist promotion agency has been duly designated to represent a particular county or counties or the city of New York, as set forth in section one hundred sixty-four of this article, shall recognize such tourist promotion agency as the sole such agency within such county or counties or the city of New York. Any two or more counties may, by the procedures herein provided, designate a single tourist promotion agency to represent them for the promotion of tourism in their region and for the purposes of this act.