In this letter to San Bernardino County Senior Planner Maryn Wells, MBCA expresses concerns about a proposed Development Code amendment that would permit expansion of the generating capacity of wind turbines Countywide. With the potential for placement of 100-foot tall wind turbines within the Rural Living Zone, MBCA is calling for the imposition of a Conditional Use Permit for the permitting of wind turbines throughout the County. Especially in desert communities, the installation of 30 to 40 foot diameter turbines presents health and safety concerns as well as threats to wildlife and the natural environment.