The regulatory changes also will allow cab companies more freedom to embrace technology. Drivers will no longer be required to have two-way radios. Most dispatch is done by computer now, Blount said, making radios redundant. The PPA also opened the door to allow cab companies to select different credit-card transaction processors. The ones currently required take 5 percent off each credit-card payment, Blount said, more than is standard in retail. The changes are expected to be approved at the authority's Oct. 25 meeting.