Throughout 1770 Boston merchants tried unsuccessfully to renew the non-import agreement. In May, they learned that Parliament had abolished customs duties on townshends (with the exception of the tea tax). The non-import movement rapidly collapsed, and the settlers were even the most patriotic settlers who wanted to consume their British luxury again. Until October 1770 the non-import died, but not for long. On November 20, 1767, the Townshend Acts came into force in America. Settlers must now be subject to tariffs on the excl. donerisch, paper, lead, color and tea, which are imported from the UK. The current non-consumer movement will soon take a political tone, as boycott measures are encouraged to save money and force Britain to lift tariffs. Traders are considering a non-import movement in the hope that a drop in sales of British products will force their British counterparts to commit to the lifting.
In Boston, merchants voted in March 1768 to block English trade. Bostonians then struggled to formulate a colony non-import program, as patriots continued to promote non-consumption by alerting the public to tea policy. Although patriots like to say otherwise, not everyone agrees with non-import and non-consumption movements. Some settlers agreed with them, buying, importing or selling British products. In August 1769, the offenders were revealed on the front page of the Boston Chronicle. The news of the violations has devastating effects on the boycott, as does the importation of traders who mock patriots and their search for « tiny packages » that could contain contraband. Once again, the settlers were outraged. In response, twelve of the thirteen colonies formed the First Continental Congress, where they drew up a list of complaints against the Crown and the provisions they would make until the legislative power was changed. One of these provisions was the non-consumption agreements, which ensured that the colonies would not import British products and would not export goods to Britain and its colonies if Britain did not rescind its previously adopted laws. The non-consumption agreements were part of a family of agreements, including non-import and non-export agreements, processed by American settlers in the declarations and resolution of the First Continental Congress of 1774. These agreements then served as the basis for the non-importation act and subsequent embargo of 1807, adopted in 1806 by the United States Congress to establish American nautical neutrality during the Napoleonic wars between France and Great Britain.