N.Y. County Law § 259

§ 259. Recording and filing of determination. The clerk of the board\nof supervisors shall within ten days cause a certified copy of the order\nof the board of supervisors establishing or extending the district,\nconsolidating two or more districts, or authorizing the increase and\nimprovement of facilities previously authorized for an existing district\nto be recorded in the office of the clerk of the county and when so\nrecorded such order shall be presumptive evidence of the regularity of\nthe proceedings for the establishment of the district or for the\nauthorization of the increase and improvement of facilities previously\nauthorized for an existing district and of all other action taken by the\nboard of supervisors in relation thereto. A certified copy of such order\nshall also be filed in the office of the state department of audit and\ncontrol at Albany, New York.\n