Preelection reports for an election period for the Board of Administration of the Public Employees’ Retirement System or the Teachers’ Retirement Board shall be filed as follows:

1. (a) For the period ending five days before the beginning of the ballot period, as determined by the relevant board, a report shall be filed no later than two days before the beginning of the ballot period.
2. (b) For the period ending five days before the deadline to return ballots, as determined by the relevant board, a report shall be filed no later than two days before the deadline to return ballots.
3. (c) In the case of a runoff election, for the period ending five days before the deadline to return runoff ballots, as determined by the relevant board, a report shall be filed no later than two days before the deadline to return runoff ballots.
4. (d) All candidates being voted upon, their controlled committees, and committees primarily formed to support or oppose a candidate being voted upon in that election shall file the reports specified in subdivisions (b) and (c) by guaranteed overnight delivery service or by personal delivery.