The Order of Business is No. 1, Air Navigation and Transport Bill 2021 - Second Stage, to be taken at 5 p.m. and to adjourn at 6.30 p.m., if not previously concluded, with the time allocated to the Minister's opening speech not to exceed ten minutes, group spokespersons not to exceed eight minutes and all other Senators not to exceed five minutes, and the Minister to be given no less than ten minutes to reply to the debate; and No. 2, Defence (Amendment) Bill 2020 - Second Stage, to be taken at 6.45 p.m or 15 minutes after the conclusion of No. 1, whichever is the later, with the time allocated to the Minister's opening speech not to exceed ten minutes, group spokespersons not to exceed eight minutes and all other Senators not to exceed five minutes, and the Minister to be given no less than ten minutes to reply to the debate.