This act was passed to assert the authority of the British government to tax its subjects in North America after it repealed the much-hated Stamp Act. The Declaratory Act stated that Parliament had complete control over the governing of the colonies in "all cases whatsoever.The Declaratory Act of 1766 declared that the British Parliament had the absolute right to tax colonies in North America. This act represented the Chatham ministry's new approach to generating tax revenue in the American colonies after the repeal of the Stamp Act in 1766. Hillsborough learned of the Massachusetts Circular Letter on 15 Apr. And immediately presented it to the cabinet. Such opposition was unconstitutional; so also, therefore, was the action that instigated it. On March 18, 1766, George III approved Parliament's repeal of the Stamp Act and its passage of the Declaratory Act. Following the repeal of the Stamp Act in 1766, colonial protests stopped and trade resumed. "Bar." Either: (1) a law barring Subdivisions in a State from maintaining Released.