Canada Day revellers will be able to celebrate as the last vestige of Ontario's outdated liquor laws is swept away.

The last of the regulatory changes that relaxed Ontario's booze rules will take effect July 1.

Organizers of multiple-day events will only have to apply for one permit and will be able to carry over the liquor from one day to the next.

It also reduces the categories of special occasion permits from nine to three, which would apply to events like birthdays, weddings, charity fundraisers and festivals.

A new permit can also be issued for events to promote a manufacturer's products, which would allow them to distribute samples and conduct market research.

Applications for special occasion permits will be accepted at any Liquor Control Board of Ontario store, rather than just the local store.