Where ACAS proposes to revise a Code under this section, it shall transmit a draft of the revised Code to the Secretary of State who—
if he approves of it, shall lay the draft before each House of Parliament, and
if he does not approve of it, shall publish details of his reasons for withholding approval.
If, within the period of 40 days beginning with the day on which the draft is laid before Parliament, (or, if copies are laid before the two Houses on different days, with the later of the two days) either House so resolves, no further proceedings shall be taken thereon, but without prejudice to the laying before Parliament of a new draft.
If no such resolution is passed ACAS shall issue the Code in the form of the draft and it shall come into effect on such day as the Secretary of State may appoint by order made by statutory instrument.