23. Except in the case of section 19 or 22, the Government, by order, may renew or not renew an agreement, and may, if it renews it, amend it to give effect to an application under section 20 to leave out a municipality or to bring a municipality not listed in Schedule I or another municipality into it.
The second and third paragraphs of section 8 apply to the renewal of an agreement when the Government brings a municipality not listed in Schedule I or another municipality into it.