OAC membership is open to all cardiologists (billing code 60) and internal medicine/cardiology specialists (billing code 13) practicing in Ontario. The membership year runs from July 1st to June 30th. Annual fees are $1,500. The annual fee for the cardiology fellowship program is $100, and the membership application must be approved by an accompanying letter of support from an OAC member. Members are encouraged to pay their annual fee by one of the options below.