The US Department of Agriculture has given the green light for US WiMAX providers to use a Canadian technology without losing access to the government’s $7.2-billion rural broadband funding program. David Sharpley, senior VP at Ottawa-based Bridgewater Systems, says the authorization “provides rural service providers with an enormous opportunity to accelerate high-speed wireless broadband access and services to un-served and underserved communities. Bridgewater's WiMAX solutions are being deployed by numerous WiMAX service providers worldwide, including new rural deployments in the U.S.” The company also announced that four U.S.-based WiMAX service providers will use its technology to accelerate the launch of 4G broadband services to over 500 un-served and underserved communities across rural America. The companies are Sprint, Scartel, Tatung, and Global Mobile. Bridgewater’s Service Control system authorizes and authenticates subscribers and provides critical accounting functions.