The Workplace Safety and Insurance Board (WSIB) is Ontario's workplace injury insurance system, providing benefits to workers injured on the job and promoting workplace safety. Employers pay premiums to WSIB, which funds compensation for workplace injuries and occupational diseases including medical care, lost wages, and rehabilitation. WSIB also enforces safety standards and provides return-to-work support. Municipalities as employers pay WSIB premiums for their workers and must maintain safe workplaces. Strong safety programs reduce injuries, WSIB claims, and premium costs. WSIB experience ratings mean employers with better safety records pay lower premiums, creating incentives for workplace safety investment.