For 20 years, a nuclear power facility provided workers with protective clothing, including underwear. When the facility announced that it would no longer provide underwear, the union filed a grievance. The Labour Relations Board dismissed the grievance. It noted that the safety rules regarding outerwear were intended to prevent the transfer of radioactive material outside of certain zones. Workers have been permitted to where their own underwear for several years although the facility still supplied underwear for those who wanted it. But there was no evidence that the supplied underwear provides any safety protection for workers [Labourers’ International Union of North America v. Ontario Power Generation Inc.,  CanLII 44720 (ON LRB), July 12, 2013].