Clause 35

any supplier of registrable goods;

any registrable corporation;

any person who apparently represents a person referred to in paragraph (a) or (b);

an energy manager of a registered corporation; or

any person who is on the premises of a person referred to in paragraph (a) or (b) when the authorised officer exercises his powers under section 33 or 34,to furnish any information within the knowledge of that person or produce any document in his custody or under his control in connection with the matter, and may, without payment, inspect, keep, copy or make extracts from such document.