Section 11
SEC. 11. A roster showing the names and addresses of master plumbers shall be prepared by the Commissioner of Civil Service during the month of July of every year. Copies of this roster shall be mailed to each person so registered and placed on file with the Office of the President of the Philippines; and copies thereof shall be furnished to all Department Heads, to the mayors of all chartered cities, to the Director of Health, Director of Public Works District Engineers, City Engineers, and to such other bureaus, government agencies and provincial and municipal authorities as may be deemed necessary, and to the public, upon request.