41.—(1) Each individual caution register will have a distinguishing number, or series of letters and numbers, known as the caution title number.
(2) Each individual caution register will be in two parts called the caution property register and the cautioner’s register.
(3) The caution property register will contain—
(a)a description of the legal estate to which the caution relates, and
(b)a description of the relevant interest.
(4) Where the legal estate to which the caution relates is an estate in land, a rentcharge, or an affecting franchise, the description will refer to a caution plan, which plan will be based on the Ordnance Survey map.
(5) The cautioner’s register will contain—
(a)the name of the cautioner including, where the cautioner is a company registered under the Companies Acts, or a limited liability partnership incorporated under the Limited Liability Partnerships Act 2000(1), its registered number,
(b)an address for service in accordance with rule 198, and
(c)where appropriate, details of any person consenting to the lodging of the caution under rule 47.