A similar tactic was used again five years later in Boston and throughout the colonies to protest the Tea Act with the British East India Company`s tea boycott, which culminated in the Boston Tea Party. As part of this work, CCE developed the five conditions of autonomy for schools, which are contained in both the Boston and Los Angeles pilot school agreements (memoranda of understanding or MOUs) between the school district and the union. Among the five conditions are: staff, budget, curriculum and assessment, governance and school calendar. In addition to the letter of intent, teachers at each pilot school in Boston and Los Angeles write together an Elect to Work Agreement (EWA) for their location each year, which outlines working conditions at the school. In Los Angeles, these GEEs are also approved by their UTLA union. The use of raw materials, goods produced in the colonies, and the ingenuity of the Yankees were commonplace. At that time, the American colonies were experimenting with the idea of being self-sufficient and not relying on the metropolis. This experience should prove invaluable, because in a few years, during the revolution, the British Royal Navy would block the American coast and close many of the major port cities. During the Boston Non-Import Agreement, merchants and merchants agreed to boycott goods subject to the Townshend Revenue Act until taxes on those goods were removed. Some critical goods were excluded from the boycott, such as salt, hemp and duck cloth. Smuggling was widespread. This was a direct violation of navigation laws. .