The Ontario Breast Screening Program (OBSP) is a program of Cancer Care Ontario. It provides high-quality mammography services for women 50 years of age and older. It is free-of-charge for women.

The OBSP provides:

• High-quality mammograms in sites accredited by the Canadian Association of Radiologists;
• Well-developed quality assurance at each site;
• Results of the screening appointment within two weeks to you and your healthcare provider;
• Help to set up extra tests or referrals if your results suggest that they are needed;
• A reminder letter when it is time to return for your next screening mammogram. Usually, this is every two years. Women over the age of 74 do not receive a reminder letter. However, they are welcome to call for an appointment after they have discussed it with their healthcare provider.