 Both Twin City and Exclusive Ambulance Services responded to the Heron Bridge Collapse on August 10, 1966.Both services worked tirelessly to help treat and account for all victims involved.The first Ambulance Act entitled, “An Act to promote Ambulance Services and improve their Standards” was created in the fiscal year of 1966-1967 and was a five-page document that was the conceptual framework for an evolving ambulance service system in Ontario.