The International Ice Hockey Federation said the exact date the mandate goes into effect for senior categories will be determined by supply of neck guards.
Should nhl + ahl players wear cages? : r/hockey
Maple Leafs captain John Tavares records 1,000th career point against Islanders
NHL - latest news, breaking stories and comment - The Independent
IIHF to make neck guards mandatory at all levels of their men's
He's a pro already': Macklin Celebrini turning heads at Canada's world junior camp
What types of neck guards are currently available for ice hockey
Hopefully, this will be #47's legacy. : r/hockey
Tragedy as American ice hockey star Adam Johnson dies aged 29
Adam Johnson: Ice hockey players have been 'stubborn' about
Man arrested in England over death of ex-NHLer released on bail
Adam Johnson death prompts new youth hockey neck guard rules
International Ice Hockey Federation to mandate neck guards after
NHL - latest news, breaking stories and comment - The Independent
Ice Hockey - Winter Olympics