The approval of any petition, plan of readjustment or other papers to be filed in any United States court or court in bankruptcy, or of any ordinance or resolution shall be requested by filing in the office of the commission a certified copy of a resolution of the governing body of the political subdivision adopted by the affirmative vote of not less than two-thirds of all the members elected to such governing body, requesting such approval, together with a true and correct transcript duly certified of any proceedings relating to such petition, plan of readjustment, other papers, ordinance or resolution, and the authorization thereof, accompanied by, in the case of documents to be filed in the United States court or court in bankruptcy, the original and one certified copy of such documents, and in the case of an ordinance or resolution, two certified copies of such ordinance or resolution. The approval of the commission under this article of any petition, plan of readjustment or other papers filed or to be filed in a United States court or court in bankruptcy, shall be evidenced only by written indorsement thereof on the petition, plan of readjustment or other papers so filed and the approval of the commission under this article of any ordinance or resolution of the governing body of any political subdivision shall be evidenced only by written indorsement thereof on a certified copy of such ordinance or resolution.