(1) A party seeking to clarify the report of a single expert witness may ask questions of the single expert witness under this rule:
(a) within 7 days after the conference under rule 15.64B; or
(b) if no conference is held, within 21 days after receipt of the single expert witness's report by the party.
(2) The questions must:
(a) be in writing and be put once only;
(b) be only for the purpose of clarifying the single expert witness's report; and
(c) not be vexatious or oppressive, or require the single expert witness to undertake an unreasonable amount of work to answer.
(3) The party must give a copy of any questions to each other party.
Note: A party may cross-examine a single expert witness (see rule 15.50).