N.Y. General City Law § 53: Plumbing and drainage to be executed according to rules

§ 53. Plumbing and drainage to be executed according to rules. The

plumbing and drainage of all buildings, both public and private, in each

of the cities of this state, shall be performed by persons authorized

under the rules and regulations adopted by the local board of examining

plumbers, in conjunction with the board of health for plumbing and

drainage, and all plumbing and drainage work shall be executed in

compliance with such rules and regulations. And all repairs and

alterations in the plumbing and drainage of all buildings heretofore

constructed shall also be performed and executed in accordance with such

rules and regulations; but this section shall not be construed to repeal

any existing provision of law requiring plans for the plumbing and

drainage of new buildings to be filed with any local board of health and

be previously approved in writing by such board of health and be

executed in accordance therewith, except that in case of any conflict

with such plans, rules and regulations of the board of examiners, the

latter shall govern.