Provides Connector Commonwealth Care program definitions. Note: the definition of "resident" has been superseded by provisions in the FY 2011 budget and section 95 of chapter 359 of the Acts of 2010.

Establishes the Commonwealth Care health insurance program, the sliding-scale subsidized health insurance program for low-income uninsured residents.

Sets eligibility standards for the Commonwealth Care health insurance program, which provides subsidized insurance to people with incomes under 300% of the Federal Poverty Level who are not eligible for other publicly-funded programs. Subsidies will be paid based on a sliding scale for eligible plans that are procured by the Connector. Subsidies are not available to workers who are provided coverage by their employers; however, the Connector may waive that restriction.

Provides that all residents of Massachusetts have the right to apply for the Commonwealth Care program, to receive written determinations, and to appeal an adverse decision.

Subsidies for the Commonwealth Care program will be paid based on a sliding scale for eligible plans that are procured by the Commonwealth Health Insurance Connector.

Residents eligible for the Commonwealth Care program whose income is below 100% of the Federal Poverty Level will be enrolled in a special health plan with no premium or deductible.

Authorizes the Connector to administer the Commonwealth Care health insurance program beginning October 1, 2006.

Directs an interagency agreement with the department of revenue for purposes of determining eligibility for Commonwealth Care.

Directs the transfer of $125 million to the Commonwealth Care Trust Fund for the Commonwealth Care program.

Provides exclusive rights for three years to Medicaid managed care organizations that have contracted with the Commonwealth to provide managed care to MassHealth members to offer subsidized plans through the Commonwealth Care Health Insurance Program.