The Combined Construction and Operating License (Regulatory Guide 1.206, COL) replaced the previous Draft Regulatory Guide 1145 as the licensing process for new nuclear power plants in the United States. It is a part of a newer "streamlined" process that encourages standard plant designs, and prevents delays in operation that contributed to the mothballing of many plants since the 1980s. "A combined license authorizes construction and conditional operation of a nuclear power plant. The application for a combined license must contain essentially the same information required in an application for an operating license issued under 10 CFR Part 50, including financial and antitrust information and an assessment of the need for power. The application must also describe the inspections, tests, a