Today, Ontario Premier Doug Ford announced that starting on Monday, December 20, 2021, everyone 18 and older will be eligible to book their booster shot. The Ontario government is also reducing the required waiting period between a second dose and a booster to three months from the original six months.
The Ontario government also announced capacity limits of 50% on venues that would normally hold 1,000 people or more, this includes sports venues, entertainment facilities, event spaces and casinos.
Book a COVID-19 vaccine: https://covid-19.ontario.ca/getting-covid-19-vaccine
Source: https://www.cbc.ca/news/canada/toronto/covid-19-ontario-dec-15-2021-booster-announcement-1.6286537