Check your league's rule
Whether a mouthguard is compulsory often depends on your branch, league or division rather than the national rulebook. Check your association's current rules. Questions about dental fitting or injuries belong with a dentist or doctor.
Mouthguards, body by body
| Body and rule | Who | Required or recommended |
|---|---|---|
| IIHF Official Rule Book 2026/27, Rule 9.13 | Senior players | Recommended, preferably custom-made. The rule says it protects the teeth and jaws and may reduce the risk of concussion. |
| IIHF 2026/27, Rule 202.3 | Men's U20 players not wearing full-face protection | Required, fully in the mouth at all times on the ice; chewing on it is not allowed. |
| IIHF 2026/27, Rule 202.4 | Men's U18 players, who wear full-face protection | Strongly recommended, not required. |
| IIHF 2026/27, Rule 102.3 | All women's players | Recommended. |
| Hockey Canada 2026-28 Playing Rules, Rule 3.6(e) Note 6 | Divisions that allow a half visor | Compulsory, except recommended but optional in Senior hockey. |
| Hockey Canada 2026-28, interpretation of Rule 3.6 | All other divisions | Not mandatory under the national rules, unless a Member (a provincial or regional branch) makes it mandatory for a division. A player who chooses to wear one must wear it properly. |
| Hockey Northwestern Ontario | All U7 to Junior players, sanctioned games and practices | Required since a June 2007 AGM decision (policy effective date 11 February 2023). |
| USA Hockey | Youth and girls players, per search summaries of Rule 304 | Not confirmed; see below. |
Hockey Canada and its branches
Hockey Canada's 2026-28 rules leave most mouthguard decisions to its Members. Where a Member has made one mandatory, the same rules on proper wear apply as for helmets, facial protectors and throat protectors. Under Rule 3.6(f) the referee penalizes a mouthguard worn improperly, and Rule 10.6(d) sets a misconduct for that after one warning to the team. In half-visor divisions, Note 6 to Rule 3.6(e) gives one team warning and then a misconduct for any later infraction, and encourages referees to give the warning to the coach.
Branch rules show how different the requirement can be within one country:
- Hockey Northwestern Ontario requires an intra-oral mouthguard that is one piece, contacts all teeth of both jaws, is at least 3 mm thick between the teeth, and may be any colour except clear. It explains the colour rule as letting officials and emergency staff see quickly whether a mouthguard is in.
- Hockey Saskatchewan states that Hockey Canada does not mandate mouthguards in its playing rules, so its officials will not enforce league mouthguard mandates. It recommends a properly fitted mouthguard at least 3 mm thick for U9 to U18 players other than goaltenders. The 2026-28 rulebook does make a mouthguard compulsory in half-visor divisions, so check how your branch applies that.
- Hockey Eastern Ontario's December 2023 policy notes that the Hockey Canada rule on improper wear covers mouthguards only where one is required.
USA Hockey: not confirmed from the rule text
We could not read USA Hockey's 2025-29 Rule 304 directly. Search summaries of it say players in the Youth and Girls classifications from 12 and under through 18U, high school and Girls 19U, goalkeepers included, must wear a coloured, not clear, internal mouthpiece covering the remaining teeth of one jaw, and that a dentist-fitted mouthpiece is strongly recommended for everyone. A club newsletter describes a team warning for a first violation and a misconduct for later ones. We could not confirm any of this wording, so check the current Rule 304 with your association.
Fitting
The Pashby fitting guide (Hockey Development Centre for Ontario with the Dr. Tom Pashby Sports Safety Fund) says an internal mouthguard can be attached to the facemask, protects the teeth and may help reduce concussion risk, and recommends having it fitted by a dentist.
Jock and jill protection
We found no governing-body rule that requires skaters to wear a protective cup or pelvic protector. For goaltenders, NFHS Rule 3-3-1 (2024-25) lists a protective cup or pelvic protector among the equipment a high school goalkeeper must wear, and the Pashby guide says goaltenders should wear a special athletic support.
- Fit, per the Pashby guide: a jock or jill strap is fitted by waist size, and protective cups come in sizes for all players. Torn straps, especially where the leg straps attach to the cup, should be repaired or replaced immediately. It also recommends a properly fitted sports bra for every female player.
- Jock or jill: Hockey Canada's goalie fitting guide, as summarised in search results, describes two options, a jock (a protective cup) or a jill (a flatter pelvic protector), and says the right choice depends on anatomy rather than gender. We could not open that guide directly.
Face protection and mouthguard rules are linked in several rulebooks, so check both together; see visors, cages and full face protection.
Sources
- IIHF Official Rule Book 2026/27, Version 1.0 (PDF, FISG copy)
- Hockey Canada Playing Rules 2026-2028 (PDF)
- Hockey Saskatchewan, helmet and coaches policy
- Hockey Northwestern Ontario, intra-oral mouthguard policy (PDF)
- Hockey Eastern Ontario, protective equipment policy (December 2023, PDF)
- USA Hockey Rulebook, Rule 304 Protective Equipment
- Oakland Bears community news, issue 10 (club newsletter)
- NFHS, Ice Hockey Rules Changes 2024-25
- A Guide to Fitting Hockey Equipment, Hockey Development Centre for Ontario and the Dr. Tom Pashby Sports Safety Fund (PDF)
- Hockey Canada, goalie equipment fitting guide (Game Change, PDF)