Any water commission, established pursuant to sections 40:62-108 to 40:62-150 of the Revised Statutes, by two or more municipalities in counties of the second class now having a population between three hundred thousand and three hundred and twenty-five thousand shall, upon written petition regulating the same, signed by a majority of the employees of said water commission employed by it on the effective date of this act, certify to the Civil Service Commission the names of all those employees, including the secretary-treasurer, employed by the said commission on the effective date of this act.
N.J.S. § 40:62-150.1