6. A majority of the members of the Régie, including the president are a quorum. In the case of a tie-vote, the president or, in the case contemplated in the second paragraph of this section, the vice-president, has a casting vote.
If the post of president is vacant or if the president is unable to act, he shall be replaced, while he remains unable to act or until a new president is appointed, by the vice-president designated for that purpose by the Government and, if that vice-president is unable to act, by the other vice-president.
When another member is unable to act by reason of absence or illness, the Government may appoint a person to replace him temporarily, on the conditions and for the remuneration it determines.
1974, c. 31, s. 6; 1979, c. 73, s. 5.