Versions of a federal bill have successfully passed both in the House and the Senate. Before the bill can become law it must be

revised by a subcommittee, approved by both chambers, and signed by the president
returned to the congressional subcommittee where it was introduced originally
signed by the president, reviewed by the Supreme Court for constitutionality, and ratified by the states
reviewed by the Supreme Court for constitutionality, and signed by the president.