It is made by the Lords of the Privy Council (in practice, ministers of the Crown).
The preamble of all Orders of Council states that the order was made at a meeting of the council held in Whitehall; however, in practice they are all approved through correspondence, and no meeting is actually held.
[2] Depending on the subject, Orders of Council can be either made under prerogative powers, or under authority granted by an Act of Parliament (and so are delegated legislation).
An example of an order made in exercise of prerogative powers would be one approving changes to the bylaws of a chartered institution.
This article relating to law in the United Kingdom, or its constituent jurisdictions, is a stub.