Reply #2: taken from Wiki

[offmybrain]

In the United States Senate, Rule XVI prohibits amendments that propose general legislation to appropriations legislations. To prevent a point of order from killing the amendment, a Senator may offer a motion to suspend rule XVI, paragraph 4, essentially making the order germane. This motion requires a 2/3 majority to approve, meaning that it rarely passes. It should not be confused with a motion to waive the Budget Act, which requires a 3/5 vote to pass and applies to amendments that spend in amounts that exceed the levels set out in the annual budget resolution, as well as many other financial issues.

http://en.wikipedia.org/wiki/Suspension_of_the_rules_in_the_United_States_Congress

http://www.cnn.com/2010/POLITICS/07/30/9.11.responders.bill/index.html