Bills are voted on at plenary meetings of the NPC, and they will be adopted if a simple majority of all deputies vote for them. An amendment to the Constitution requires a two-thirds majority vote to be passed. Voting results are announced by the Chairman of the meeting when the voting is completed. After a bill becomes law, the President of the People's Republic of China signs a decree to promulgate it. After an amendment to the Constitution is adopted, it is promulgated by the Presidium of the NPC session.
At an NPC session, the Presidium decides whether to vote on bills by ballot, show of hands or some other method. Voting on amendments to the Constitution is always by ballot.