NRC is responsible for regulating the commercial nuclear industry, including nuclear power plants. NRC provides services, such as inspections, for regulated entities that hold licenses—that is, licensees. NRC recovers the costs for these services by assessing fees and billing licensees quarterly. In fiscal year 2016, NRC collected about $321 million in service fees. From 2006 to 2016, audits of NRC’s fees identified problems with NRC’s billing process. For example, a 2012 audit identified about $24 million in unbilled fees from fiscal years 2011 and 2012...