423. At general elections, the official agent of an authorized party, his deputy or the official representative of a party authority at the level of an electoral division, if expressly authorized therefor by the official agent of the party, may, for as long as no candidate of their party has filed his nomination paper in that electoral division and before the expiry of the period fixed for the filing of nomination papers, authorize election expenses in the electoral division for an amount not exceeding $3 000.
If, at the time of the polling, the party has no candidate in the electoral division for which the expenses were authorized, the expenses are deemed to have been incurred by the party. In the opposite case, the expenses are deemed to have been incurred by the official agent of the candidate of the party; the person who authorized the expenses shall file a detailed account thereof with the official agent of the candidate of the party.