sentences:  As a result of the 2005 Accessibility for Ontarians with Disabilities Act, which requires all public transport services in Ontario to become accessible by 2025, the TTC began to make its streetcar system wheelchair accessible on August 31, 2014, when the first two new low-floor Flexity Outlook streetcars entered service on the 510 Spadina line.The new streetcars have also been used on the 509 Harbourfront since March 29, 2015, and on the 514 Cherry from June 19, 2016, until that route's decommissioning on October 7, 2018.They have also been in operation on the 512 St. Clair since September 3, 2017; the 504 King since January 7, 2018; the 501 Queen since January 6, 2019; the 508 Lake Shore since September 3, 2019; the 506 Carlton since October 13, 2019; and the 505 Dundas since April 20, 2020.