It sat until 1644 when Parliament and their new Scottish allies agreed to replace it with the Committee of Both Kingdoms.
The first was set up on 7 May, on the authority of the Rump Parliament, to replace the Lord Protector Richard Cromwell's Council of State.
It initially had seven members Charles Fleetwood, Sir Arthur Hesilrige, Sir Henry Vane the Younger, Edmund Ludlow, William Sydenham, Richard Salwey, and John Jones.
[2] The last Committee of Safety was set up on 26 October 1659 by the high command of the New Model Army just before the Restoration.
It was set up in response to the Rump Parliament which the day before tried to place the commander of the army Charles Fleetwood as chief of a military council under the authority of the speaker.