There are 9 steps a bill can go through before becoming a law. The history of the Genetic Information Nondiscrimination Act (GINA), a law that was passed in 2008 and impacts the field of genomics, provides an excellent example of the legislative process in action.
After both the House and Senate have approved a bill in identical form, the bill is sent to the President. If the President approves of the legislation, it is signed and becomes law. If the President takes no action for ten days while Congress is in session, the bill automatically becomes law