From Ontario Wedding Association:
"If dancing is taking place at any venue that serves food and drink (e.g., wedding reception in a meeting or event space), the provisions that currently apply to food or drink establishments with dance facilities (e.g., nightclubs) would apply to the gathering held at the venue."
I believe this is what they have as the rule for nightclubs:
- Indoor food or drink establishments where dance facilities are provided, including nightclubs and restobars, permitted up to 25 per cent capacity or up to a maximum limit of 250 people (whichever is less).