§ 521. County laboratories; establishment by referendum. 1. Upon the
petition signed by two hundred or more taxpayers of the county or
district to be served by such a laboratory, the governing body of that
county or district at the next date for filling an elective office shall
hold a referendum upon the question of establishing a laboratory the
construction of which is to be financed by taxes levied for the fiscal
year in which the expenditures therefor are to be made. If a majority
of the votes cast are in favor of establishing such a laboratory it
shall be mandatory upon the governing body of that county or district to
take the steps necessary for the establishment and maintenance of such a
laboratory as provided for by this chapter.

2. Nothing contained in sections five hundred to five hundred
twenty-one, inclusive, of this chapter shall be construed to prevent the
financing of any expenditure, in whole or in part, pursuant to the local
finance law.