Act of Congress

For a bill to become an act, the text must pass through both houses with a majority, then be either signed into law by the president of the United States, be left unsigned for ten days (excluding Sundays) while Congress remains in session, or, if vetoed by the president, receive a congressional override from 2⁄3 of both houses.

[1] For example, P. L. 111–5 (American Recovery and Reinvestment Act of 2009) was the fifth enacted public law of the 111th United States Congress.

The term "act of Congress" is sometimes used in informal speech to indicate something for which getting permission is burdensome.

[11] The archivist provides for its publication as a slip law and in the United States Statutes at Large after receiving the act.

Through the process of judicial review, an act of Congress that violates the Constitution may be declared unconstitutional by the courts.