4.2. Every person who, as part of a retail sales operation, offers for sale or sells beer or soft drinks in non-returnable containers, or distributes beer or soft drinks free of charge in non-returnable containers, must accept the return of empty containers that are marked as required under an agreement or the regulations referred to in section 3, and refund the refundable portion of the deposit.
The first paragraph does not apply where the beer or soft drinks are sold, offered for sale or distributed free of charge for consumption on the premises, or by means of an automatic vending machine.