(1) In a proceeding, a certificate purporting to be that of the chairperson stating any of the following matters is evidence of the matter—
(a) a stated document is an appointment or notice made or given under this Act;
(b) a stated document is a document given to the commission under this Act;
(c) a stated document is a copy of a document mentioned in paragraph (a) or (b);
(d) on a stated day, a stated requirement was made of a person.
(2) A statement in a complaint for an offence against this Act that the matter of the complaint came to the knowledge of the complainant on a stated day is evidence of when the matter came to the complainant's knowledge.