Rule D: Services and fittings
2.—(a) Particulars of the services or fittings so far as is necessary to establish whether they comply with all such requirements of these regulations as apply to them; and
(b)where it is proposed to provide an unvented hot water storage system to which Part P of these regulations apply, the particulars required by paragraph (a) shall include—
(i)the name, make, model and type of hot water storage system to be installed;
(ii)the name of the body, if any, which has approved or certified that the system is capable of performing in a way which satisfies the requirements of Part P; and
(iii)the name of the body, if any, which has issued any current registered operative identity card to the installer or proposed installer of the system.