Quartering Act (1765)
The Quartering Act of 1765 was an act passed by British Parliament, which forced people in the US colonies to house and feed British soldiers during times of peace if there was no room in barracks. The symbolic power of this act was great, as it implied that there would now be a British standing army in the colonies during peace time. The act was largely ineffective and expired in 1767, however, it was amended in 1774 as part of the Intolerable Acts.
Even though it was rather ineffective, the act had such high symbolic value and was so unpopular that it is mentioned in the Declaration of Independence and in the US Constitution.
Full texts: http://www.ushistory.org/declaration/related/quartering.htm
This list is based on paragraph 2, which explains the core aspect of the act.