The agreement or contract referred to in section seven of this act, and the resolutions authorizing the issuance or sale of bonds may provide for, and any county, municipality or school district may issue and sell at private sale to the federal government in connection with any public works project, notes, temporary bonds, interim certificates or other negotiable instruments, which may be issued before or after the sale of the definitive bonds and may be funded by or may be exchanged for the definitive bonds bearing the same date or a subsequent date.
N.J.S. § App.A:3-8