The County of Yolo is seeking qualified consultants and firms to provide on-call consulting services across multiple engineering disciplines, including structural, mechanical, electrical, and civil engineering. The purpose of this request for qualifications is to establish a pool of pre-approved consultants who can deliver services on an as-needed basis for various county projects. These services may include engineering assessments, investigations, studies, system analysis, code compliance reviews, and preparation of technical reports. Consultants may apply for one or more service categories and must demonstrate relevant experience, qualifications, and the ability to meet public works requirements. The resulting contracts will be used to support countywide infrastructure and facility-related needs over a multi-year term, with no guaranteed minimum workload. This solicitation emphasizes technical expertise, compliance with regulatory standards, and the ability to respond efficiently to project-specific demands.