What are the key dates for third party advertisements?

Key date Reason
April 1, 2018 new rules come into effect
May 1, 2018 first day for third party advertisers to register
October 19, 2018 last day for third party advertisers to register
December 31, 2018 campaign period ends and last day to accept contributions
March 29, 2019 (2 p.m.) last day to file financial statements and auditor’s reports

In certain circumstances the filing date or campaign period may be extended.