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62 Guidebook for Managing Small Airports The system has proven to be successful at improving safety. ADS-B was first used in Alaska, where accidents declined by 40% after implementation. As part of its Next Generation Air Transportation System, the FAA has requested in its budget $85 million in 2008 and $564 million over the next five years for ADS-B infrastructure develop- ment, demonstration, and implementation. Some key drawbacks have been identified with ADS-B: General aviation operations will be linked to the Universal Access Transceiver, while commer- cial operations will link with the 1090 MHz squitter. These frequencies are incompatible, which means to date the vehicle tracking/surface moving map might not depict both frequencies. The targeted implementation date for onboard avionic transponders is 2014 for commercial air- craft and 2020 for all aircraft. Because funding mechanisms for the system are unidentified at this time, it is questionable whether system-wide installation will be achieved by the target dates. The 1090 MHz frequency for commercial operations has been used in Europe. Based on expe- rience with the same frequency, some officials there predict system overload in the early 2010s. Despite greater space across the United States, some remain skeptical. Consultant Selection AC 150/5100-14, Architectural, Engineering and Planning Consultant Services for Airport Grant Projects, provides important guidance for the selection of a consultant. Use of this document is rec- ommended to ensure appropriate steps are taken to procure the services of a qualified consultant to assist with planning, design, and construction projects. These federal regulations require a quality-based selection process for selecting consultants for projects funded with FAA AIP funds. This requirement includes consultant selection and procurement by sponsors, states, and the FAA Airports Division. All parties are encouraged to become familiar with the requirements of this AC and use the following guidelines: Advertise early enough to give consultants at least three weeks to respond; Properly identify the scope of work, required services, project schedule, project details, and selection criteria in all requests for qualifications (RFQs); Select a committee to establish a well-defined scoring system and rate the statements of qualifi- cations (SOQs); Do not include requests for cost information, including hours or hourly rates, in the RFQ or anywhere in the selection process; Use interviews when a clear decision cannot be made on the submitted SOQs; Limit the interview short list to no more than three to five firms; Notify the consultants at least two weeks in advance of an interview and identify the interview format and expectations; Notify all parties of the final selection in a timely fashion; Request that the selected consultant develop a detailed work scope and corresponding fee esti- mate for negotiations; Include applicable federal provisions in all consultant contracts; Avoid any broad-form indemnity language in contracts; and Ensure that key project personnel identified during the consultant selection process are stip- ulated in the contract. This process allows for the sponsor to select a qualified consultant and work to negotiate an appropriate fee for the individual needs for each project. Although they may disapprove of the selected consultant, scope of work, cost, or contract, the role of FAA personnel in the sponsor's or state's consultant selection process is advisory only.