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during their nesting season (May 1 - October 31) by restricting outdoor lighting in beach areas. Research has demonstrated that light intensity, primarily on the horizon, is the main visual cue in the orientation of turtle hatchlings to the sea. Studies have also shown that bright artificial lights along nesting beaches will disorient hatchlings, causing them to spend extended periods of time wandering landward or along the beach. Such disorientation usually results in an increase in mortality and a-weakeningof those hatchlings that eventually do reach the sea. On November 13, 1986, the Planning & Zoning Commission, having specific concerns with the draft ordinance as it was written, voted 6-0 to recommend that staff conduct a workshop with interested organizations, prepare a revised draft and bring the ordinance back to the Commission for further deliberation. These concerns expressed by the Commission members were as follows: 1) Lighting which does not conform with the proposed ordinance requirements cannot be identified until after construction has been completed; 2) Violations associated with non -fixed artificial lighting such as flashlights and vehicular lights are impossible to enforce; 3) The ordinance, in general, is difficult to enforce As directed by the Planning and Zoning Commission, staff held a public workshop on the turtle protection ordinance on December 12, 1986. The current draft, prepared and made available to the public prior to the workshop, was discussed and those attending found significant improvement in the revision offered by the staff. On January 8, 1987, the Planning and Zoning Commission held a public hearing on the proposed ordinance and after making some minor revisions, voted 5-0 to recommend approval by the Board of County Commissioners. ALTERNATIVES & ANALYSIS: The proposed ordinance focuses on restricting potential sources of artificial light with regard to new development and existing development. New Development: The ordinance specifies that all new single family, multiple family, commercial and other structures must comply with the following lighting regulations: 1) Floodlights shall be prohibited. Wall mounted light fixtures shall be fitted with hoods so that no light illuminates the beach; 2) Pole lighting shall be shielded in such a way that light will be contained within an arc of three (3) to seventy- three (73) degrees on the seaward side of the pole. Outdoor lighting shall be held to the minimum necessary for security and convenience; 3) Low profile luminaires shall be used in parking lots and such lighting shall be positioned so that no light illumi- nates the beach; FEB 10 1�� 17 BOOK U�� r�