If they're caught using it without one, they face an $80 fine and 20 demerit points.
From the nzherald.co.nz
The 28-year-old Belconnen man was fined $644 and lost four demerit points.
From the citynews.com.au
Robbie Gould gets a demerit for his weak onside kick in the final minutes.
From the dailyherald.com
The only demerit for special teams on this day was the punt Mike Scifres had blocked.
From the signonsandiego.com
He was suspended indefinitely, fined $7,500 and given a formal demerit.
From the sfgate.com
None of us should speed and this is why we have fines and demerit points.
From the dailymercury.com.au
We have a demerit system in place, and everyone should be treated equally under the law.
From the dailymercury.com.au
DeMerit said he would approach Brazil on Sunday the way he has always approached soccer.
From the nytimes.com
DeMerit fell to his knees and put his head to the turf in exasperation.
From the nytimes.com
More examples
A mark against a person for misconduct or failure; usually given in school or armed forces; "ten demerits and he loses his privileges"
The quality of being inadequate or falling short of perfection; "they discussed the merits and demerits of her novel"; "he knew his own faults much better than she did"
A quality of being inadequate; a fault; a disadvantage
(Demerits) strikes against you. The Navy can't stike Mids, but they can give demerits. The more demerits, the worse the offense and the harsher the consequences.
(Demerits) A point system used to rate the quality of a particular arrangement of type, for example, when line breaking in TEX. Lines receive demerits for faults such as being -too loose or tight; paragraphs, for defects such as consecutive hyphenations.
(Demerits) A punitive tool. Oftentimes involves having one's points removed. Poster can also be given something he/she doesn't want. Constantly threatened, but rarely enforced.
(Demerits) will be given out if students miss a breakfast, assembly, house meeting, late for study and lights out, or other misbehaving. Boarding students will be given a Tier One Gating if they get 11 demerits while day boys can only have 6 before they are given a Tier One Gating.
(demerits) marks or warnings against someone
Given when the rules were broken. When accumulated, trainee would be disciplined -- sometimes restricted to the base.