esented in collective bargaining representation units for which contracts are negotiated between various independent contractors or associations and various labor unions. Representation of positions listed in Schedule F herein is not pursuant to the provisions of Section 4.800 et. seq. of this Code. Employees occupying positions set forth in Schedule F herein are civil service exempt daily–rated construction workers. Employees occupying positions set forth in Schedule G herein are civil service employees who are employed on an as needed basis and paid a daily rate based solely upon the rates established in agreements between the respective construction contractors and the building trades Council. The salary rates established by the collective bargaining agreements negotiated between the respective construction contractors or associations and the respective labor unions for employees occupying positions and DDR numbers set forth in Schedules F and G are hereby determined to be an ascertainment of the prevailing wage for each position in each instance. The rates of compensation for the employees occupying positions listed in Schedules F and G as specified in the Item numbers set forth therein and pertaining to the duties and description record numbers (DDRs) shown opposite shall be fixed in accordance with the specific agreements applicable to such classes as set forth therein. The Director of the Office of Administrative and Research Services shall from time to time amend the wage rates and other items of salary appearing on such Item numbers and DDRs to conform to the rates of compensation negotiated in the applicable labor agreements and such rates shall constitute the prevailing wage in each instance and authority is hereby established to pay such rates of compensation so established. Employees in the Construction Intermittent positions set forth in Schedule F and Schedule G shall not be covered by any of the provisions of this Code unless their coverage is specifically provided. SCHEDULE “F” Agreement between Southern California Chapter Western Insulation Contractors Association and Local No. 5, International Association of Heat and Frost Insulators and Asbestos Workers: Code Class Title Item No. DDR No.