H.R. 10412, known as the "Federal Freeze Act," seeks to limit the hiring and salary increases at federal agencies. For one year following the enactment, agencies cannot employ more people than they currently have unless it's necessary for law enforcement, public safety, or national security....
Simple Explanation
H.R. 10412 wants to make sure that for one year, most federal offices can't hire more people or increase their salaries. It also asks these offices to have a little fewer people working there in three years.