The provisions of chapter 40-24 shall be followed in the collection and disbursement of the funds to be collected to cover the cost of operating a service district; provided, however, that nothing in chapter 40-24 shall limit the length of time for which assessments for police protection and garbage removal services may be levied. Such assessments may be levied so long as the service is rendered.
N.D.C.C. § 11-28.1-16