Main Page | See live article | Alphabetical index A sunset clause is commonly a provision of a law passed by a legislature which causes that law to, in effect, repeal itself automatically as of a given date in the future, unless it is extended by another act of legislature. They are commonly included in controversial laws as an attempt to assuage the concerns of opponents, although they are not solely found in that type of lawmaking. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.