New Mexico Statutes Chapter 4. Counties § 4-37-2. Areas in which county ordinances are effective

County ordinances are effective within the boundaries of the county, including privately owned land or land owned by the United States. However, ordinances are not effective within the limits of any incorporated municipality; provided that an ordinance adopted by a county pursuant to the Solar Energy Improvement Special Assessment Act shall be effective within the limits of an incorporated municipality if the municipality adopts an ordinance approving the application of the county's ordinance within the incorporated municipality.