(a) Purpose. The purpose of this rule is to establish minimum standards for RPCs to use in complying with applicable sections of the Americans with Disabilities Act (ADA).(b) Equipment. All 9-1-1 Public Safety Answering Points (PSAPs) must have telecommunication device for the deaf (TDD) accessibility equipment at each 9-1-1 call taking position. This equipment may be integrated into the CPE or may be a separate stand-alone unit. In addition, each PSAP must also have at least one functioning stand-alone TDD unit available to be used as back-up in the event of equipment failure; in order to comply with Title II of the ADA.(c) Testing. In accordance with Commission Rule 251.1, Regional Strategic Plans for 9-1-1 Service, all PSAPs must test the 9-1-1 equipment to ensure that the integrated and stand alone TDD is functioning properly.(d) Training. All 9-1-1 call takers must be trained to recognize and accept TDD calls through both the integrated and stand alone TDD. Training must be offered at a minimum of once every six months.