Costs are free to the user, generally absorbed by the province/territory
NB. Ontario provincial support ended April 26, 2019.
Northwest Territories: http://www.nwtpls.gov.nt.ca/BorrowByMail.html
– Supports ILL
– Materials sent through a provincial courier service
– Supports ILL through BAnQ
– Materials sent through post or occasionally a courier service
– No charge to Quebec public libraries to use ILL provided they are members of BAnQ
New Brunswick: https://www2.gnb.ca/content/gnb/en/departments/nbpl/interlibrary.html Some libraries charge a lending fee for interlibrary loans. You will only be billed if you accept the charge beforehand. Fees can be paid at your local library when the item is picked up.
Prince Edward Island: https://www.princeedwardisland.ca/en/service/request-interlibrary-loan