The purpose of this overlay zone is to ensure early coordination with the Department of Defense when development projects represent potential encroachment to military airspace designated for military training and transport activities. (Ord. 353 § 3 (Att. B), 2025)

This overlay zone is applicable within the military airspace areas identified in the military airspace overlay zone map and that includes encroachment of:

(1) Structures over 50 feet if in the 100-foot above ground level (AGL) airspace, over 100 feet in height if within 200-foot AGL airspace, over 200 feet in the 300-foot AGL airspace, and over 400 feet in height if within the 500 feet AGL airspace;

(2) Solar photovoltaic energy facilities within the zone;

(3) Development or uses that create or cause interference within the radar line of sight; or

(4) Energy facility development, transmission infrastructure, or uses that produce light emissions. (Ord. 353 § 3 (Att. B), 2025)

Any applicable development or use shall be required to submit a preapplication conference request at least one month ahead of submitting a complete application. The preapplication conference shall include:

(1) Early notification to the Department of Defense through contact information on ORESA or in coordination with the county staff about the proposed development or use;

(2) Allow for a 30-day review by the Department of Defense NW Regional Coordination Team (NW DoD RCT) of the proposed development or use; and

(3) Should the Department of Defense identify potential adverse impacts to critical military training and operating areas, implementation of measures to avoid or sufficiently mitigate said adverse impacts. (Ord. 353 § 3 (Att. B), 2025)

Proposed developments or uses that have identified impacts shall be permitted conditionally with the avoidance or mitigation measures developed in consultation with the NW DoD RCT, the planning department, and applicant or developer. Measures may include:

(1) Relocation or adjustment of location;

(2) Reduction in structure height;

(3) Venting, screening, or other mitigation of steam, dust, smoke or other visual interference;

(4) Agreement to use frequencies or other communications equipment that does not present interference;

(5) Federal Aviation Administration compatible lighting and marking;

(6) Antireflective coating for solar panels;

(7) Altering tilt and azimuth angles;

(8) Mitigation or avoidance measures on behalf of the DoD; or

(9) Other measures as appropriate. (Ord. 353 § 3 (Att. B), 2025)

Land located in the military airspace overlay zone (Chapter 18.118 CCC) is subject to the requirements and standards of this chapter in addition to those specified in the underlying zone. If a conflict in regulation or standards occurs, the more restrictive regulation or standard shall apply. (Ord. 353 § 3 (Att. B), 2025)