 In February 2010, the Vermont Senate voted 26 to 4 to block operation of the Vermont Yankee Nuclear Power Plant after 2012, citing radioactive tritium leaks, misstatements in testimony by plant officials, a cooling tower collapse in 2007, and other problems.By state law, the renewal of the operating license must be approved by both houses of the legislature for the nuclear power plant to continue operation.In 2010 some companies withdrew their applications.