Under the Smoke-Free Ontario Act, 2017 (SFOA, 2017) , “No Smoking,” “No Vaping,” or dual signs must be posted at all building entrances, exits, and washrooms, in appropriate locations and sufficient numbers, so that it is clear where smoking and vaping is not permitted. Please refer to the SFOA, 2017 Fact Sheets to determine which signs are required for your location.