Below is a table showing the minimum suspension periods for speeding, as provided in Schedule 5 of the Road Safety Act 1986,
| Speed | Minimum period |
| Exceed speed limit by 25 kilometres per hour or more, but less than 35 kilometres per hour. | 1 month |
| Exceed speed limit by 35 kilometres per hour or more, but less than 45 kilometres per hour. | 6 months |
| Exceed speed limit by 45 kilometres per hour or more. | 12 months |
| Any speed of 130 kilometres per hour or more that is not covered by item 1, 2 or 3. | 1 month |
These minimum periods are mandated by s 28(1)(a) of the Road Safety Act 1986.
The Interpretation Of Legislation Act 1984 s 44(6) states,
(6) In an Act or subordinate instrument, unless the contrary intention
expressly appears-(a) a reference to midnight, in relation to a particular day, shall be construed as a reference to the point of time at which that day ends;
(b) a reference to a month shall be construed as a reference to a calendar month;
(c) a reference, without qualification, to a year shall be construed as a reference to a period of twelve months;
(d) a reference to a financial year shall be construed as a reference to the period of twelve months ending at midnight on 30 June; and
(e) a reference to a calendar year shall be construed as a reference to the period of twelve months ending at midnight on 31 December.