N.J. Stat. § 40:64-1
The body having charge of the finances of any municipality, and in case of a municipality governed by commissioners, the board of commissioners thereof, may provide by ordinance that the regulation, planting, care and control of shade and ornamental trees and shrubbery upon and in the streets, highways, public places, parks and parkways, of the municipality except State highways unless the Department of Transportation shall assent thereto and except county highways, parks and parkways, in counties now or hereafter having a county shade tree commission, unless the county shade tree commission or county department of parks and recreation shall assent thereto, shall be exercised by and be under the authority of a commission, which shall be known as the shade tree commission of . The commission shall consist of not less than five nor more than seven members, and may include not more than two alternate members. The members and alternate members shall be appointed by the mayor or other chief executive officer of the municipality, shall be residents of the municipality, and shall serve without compensation except as hereinafter provided.
N.J.S. § 40:64-1