Except where otherwise provided, the City of Lander shall be responsible for the general interpretation, enforcement and implementation of this Title 4 and shall have the power to issue orders and file complaints to effect such enforcement. It shall be the responsibility of the City of Lander to issue a Certificate of Zoning Compliance to all pre-existing, legal, nonconforming uses, structures and lots stating the date upon which such was established or acquired, and to prepare an inventory and map of the same.