As a result of the Act, Barbados became the fourth English-speaking country in the West Indies to achieve full independence from the United Kingdom, after Jamaica, Trinidad & Tobago, and Guyana.

The bill was first presented in the House of Commons of the United Kingdom as the Barbados Independence Bill on 28 October 1966, by Secretary of State for the Colonies, Frederick Lee.

[1] It was passed in the House of Commons after a third reading and committee on 2 November 1966, without amendments.

[4] The bill received Royal assent on 17 November 1966, from Queen Elizabeth II.

Barbados then remained a constitutional monarchy under the Barbadian monarch until announcing a conscientious republic status following an electoral college style referendum on 30 November 2021.