increase font size Mills advances 10-year ban on offshore wind development in state waters The moratorium would focus commercial-scale wind power development in federal waters of the Gulf of Maine, where an offshore wind research project is planned. Share As fishing interests geared up early Wednesday for a rally against offshore wind power development, the administration of Gov. Janet Mills introduced legislation to create a 10-year ban on new projects located in state waters. The proposed moratorium would set aside state waters, which extend up to three miles from shore, for fishing and recreation. It would focus commercial-scale wind project development in federal waters of the Gulf of Maine, where the Mills administration has proposed a first-in-the-nation research array to study floating offshore wind technology.