reg 23 Related party disclosures
An energy assessor must include in an energy performance certificate or inspection report a declaration of any personal or business relationship (other than in relation to producing the certificate or inspection report) that he has with— (a) the person who commissioned the certificate or inspection report; (b) any person on whose behalf the certificate or inspection report was commissioned; and (c) any person who he believes— (i) has or may have a personal or business relationship with a person referred to in paragraph (a) or (b); or (ii) has or may have an interest in the building.