N.J. Stat. Ann. § 40:48-2.12d

Any ordinance adopted pursuant to this act may provide for the service of notices under any ordinance of the municipality or under any State law applicable to the municipality, upon the said owner, lessor and agent, as being sufficient notice to the owner or lessor, and for the service of any such notice by posting it upon the premises in a conspicuous place where the owner or lessor has failed to register his premises with the municipal clerk as required by the ordinance, and designate an agent in respect to the premises, residing in the municipality or where such an agent has been designated but cannot be found at the address given in the registration.