Specifications include, but are not limited to: Upon the request of the City of El Mirage Police Department, the contracted towing service companies will be responsible for removal of wrecked vehicles from accident scenes; vehicles which constitute a traffic hazard; vehicles that may be evidence of a crime; vehicles impounded as a result of an arrest; and any other vehicle in accordance with A.R.S. §28- 3511. All services provided by the contracted towing service companies shall be performed to the highest standards of the towing industry. The City of El Mirage does not guarantee a minimum number of tows, offeror should be aware that the tow service will be used on an "as needed" basis. The conditions of this proposal shall not apply when a tow, made by a towing company, is initiated, specified and requested by the driver or owner of the vehicle. The City of El Mirage has determined that, in the best interests of its citizens, the competition of this Request for Proposal shall be based upon the evaluation criteria of the contractors and not cost; therefore, the City of El Mirage has established fixed pricing for all categories of towing, storage and service. The City of El Mirage has determined that, in the best interests of its citizens, one (1) contractor and two (2) alternates will provide the appropriate level of service