The image below is a schematic flow diagram of a typical oil refinery that depicts the various unit processes and the flow of intermediate product streams that occurs between the inlet crude oil feedstock and the final end products.
In order to check-in into a hotel, the person must be 21 years old.  If the person is younger than 21, then a parent or guardian can  give permission for them to check-in. 1 person found this useful.
toronto hotel minimum check-in age. I clicked on just a few and got a pretty even split between 18 (Sheraton Centre, Pantages), 19 (Strathcona, Bond Place), and 21 (Cambridge Suites, Ramada Plaza). Only one I saw that was 25 was Mississauga's Waterside Inn.