YAVAPAI COUNTY PLANNING AND ZONING ORDINANCE Page 155 Note 2. Lights shall be shielded. f. Sports Field: (1) Class: Lighting, in all cases, for all outdoor athletic fields, courts, pools, tracks or ranges shall be considered Class 1 (Color Rendition). Sports field lighting at schools is exempt from this Ordinance as provided for in Section 201 (Applicability and Exemptions) regarding publicly owned and operated facilities used for essential government purposes. (2) Shielding: Fully shielded lighting shall be required for fields designed for amateur, recreational or non-professional sports activity. For professional level sports facilities where fully shielded fixtures are not utilized, acceptable luminaires shall include those which: (a) are provided with internal or external glare control louvers, or both, and installed so as to minimize up-light and off-site light trespass as defined in Subsection B; and (b) are installed and maintained with aiming angles that permit no greater than two percent (2%) of the light emitted by each fixture to project above the horizontal. (3) Lighting Amount: When the proposed lumens per acre exceeds the limits of Subsection C.2.j, the installation shall be designed to achieve no greater than the minimum illuminance levels for the activity as recommended by the Illuminating Engineering Society of North America (IESNA). If IESNA has more than one applicable recommended practice, then the lowest figure shall apply. Street lighting is exempt from the total lumen count for a given property. (4) Off-Site Spill: The installation shall also limit off-site spill (off the parcel containing the sports facility) to a maximum of 0.5 fc at any location on any non-residential property, and 0.05 fc at any location on any residential property, as measurable from any orientation of the measuring device. If lighting products are not available to meet these standards, then the product providing the lowest off-site spill levels shall be required. (5) Curfew: All events shall be scheduled so as to complete all activity by 10:00 p.m. Illumination of the playing field, court, track or range shall be permitted after 10:00 p.m. only to conclude a scheduled event that was unable to conclude before 10:00 p.m. due to unusual circumstances and once off remain off during non-business hours. (6) Certification: Every such lighting system shall be certified by an Arizona registered engineer, other certified lighting specialist or equivalent manufacturer documentation as conforming to all applicable restrictions of this Ordinance as installed. (7) Non-Field Lighting: All site lighting not directly illuminating the field, court, track or range shall conform to all applicable standards of this Ordinance. 5. Public Buildings and Street Lights a. When new publicly-owned buildings and other facilities are constructed, the