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Attachment A - Joint Agreement for 800 MHz CCCS Page 33 of 83 • A preliminary assessment of Impact on other System users and an estimate of associated costs, if any. The Governance Committee may direct the Lead Agency Director to conduct an assessment to address: • Technical impact to current and future System performance including which system or subsystems will be or may be affected. • Operational impact to current and future system performance including effects on System capacity and determination of those systems or subsystems that will be or may be affected. • Degree of conformance with Governance Committee approved plans and standards. • Cost impact to current participants. • Potential alternatives. The Lead Agency Director shall forward the completed assessment to the Govemance Committee along with recommendations Including strategies to mitigate negative impacts, if appropriate. The Governance Committee shall notify all agencies of all requests along with potential impact and invite their comments. The Governance Committee will approve, deny, or modify the requested SOP change. If approved, the Governance Committee will incorporate the applicable SOP modifications and inform System users. Management of Change Process The Governance Committee Chair will manage this process. 4.0 RADIO SYSTEM MANAGEMENT 4.1 Radio System Architecture The System is an advanced digital radio communications system built to the Association of Public -Safety Communications Officials (APCO) Project 25 (P25) digital radio standards. The P25 System is a standards based system, and different vendor subscriber radios may be able to access and use it. Due to manufacturer differences outside of the defined P25 standard, not all manufacturer radio features may work with the System. Some radios may interact differently with the existing Infrastructure and can potentially exhibit undesirable operational characteristics. As a result, the following procedures must be followed: • All manufacturer's radios must be tested and approved by the Lead Agency prior to being used on the System. • A listing of tested and approved radio models will be maintained by the Lead Agency. Operational Context