FYI - I contacted By-Law office - here is their response:
will send to swordedjesscrown
Hello Caliguy
Principal means of access would be the main entrance to the business. If the main entrance is located in the rear of the building then itโs the principal access and needs to be open. If the main entrance is in the front and open and it has other secondary entrances, like a back door, they could be locked. Typically back doors are locked for security reasons and the main door in the front is open for secure access to the business.
I hope this helped!
Thank you,
Elizabeth Nielsen
Administrative Assistant to the Director of Bylaw Enforcement
Municipal Licensing & Standards
Licence and Permit Issuing Office
East York Civic Centre
850 Coxwell Ave, 3rd Floor
Toronto, ON M4C 5B1
Monday to Friday, 8:30 a.m. to 4 p.m., except statutory holidays
Telephone: 416-392-6700
Fax: 416-392-4515
Email: mlsbusinesslicence@toronto.ca