UNSW Australia`s Gilbert + Tobin Centre of Public Law argued that sunset clauses should not include renewal mechanisms. They argue that the legislation should expire at the end of the period, rather than remaining in the laws that will be reinstated in the future. The purpose of a sunset clause is generally to allow Parliament to enact legislation when an amendment or action by the State is necessary relatively quickly, when the long-term effects of the law in question are difficult or impossible to foresee, or when the circumstances justify such a legal structure. A sunset clause usually dictates the end of a marriage contract after a certain number of years of marriage. For example, a couple may decide on a sunset clause that requires the agreement to expire once the couple has reached 25 years of marriage. After being married for so long, all the doubts that could have inspired the prenup will probably have dissipated, and the prenup is no longer necessary. The coronavirus law is an emergency law. It contains a “sunset clause”. This overview explains what a sunset clause is and what it means in the context of the coronavirus law. The inclusion of a sunset clause in a new construction contract (provided it is worded in such a way that only the buyer and not the seller can terminate) can be particularly important for a buyer for several reasons, including: In the Reconciliation of Economic Growth and Tax Relief Act 2001, The U.S. Congress has passed an exit from the federal rebencing tax for the next 10 years. so the tax would be completely repealed in 2010.
However, although a majority in the Senate supported the repeal, there was no three-fifths super-majority for it. As a result, a sunset provision in the Act resets the tax to its original level (and in fact all tax reductions included in the Act) on January 1, 2011, to comply with the Byrd Rule.  Congress passed new estate tax rates before the sunset clause was triggered.  Once the expiry date has been reached, the law referred to in the section becomes invalid. If the government wishes to extend the duration of the coming into force period, it may postpone the date of the expiry provision at any time before it is reached. In 2004, the sunset clause of the 1994 federal assault weapons ban ended the law. In 2007, the Liberal Democratic Party proposed a constitutional amendment to make sunset clauses mandatory in all laws that do not have the support of a 75% parliamentary supermajority.  Prenups can have several clauses, and one of the most important is the “sunset” clause. This clause is aptly named because it covers how the marriage contract ends.
Couples can arrange sunset clauses as they please, and most include them in their prenups assuming that after so many years of marriage, the prenup is no longer necessary or exactly true of the marriage. The term timer is also used in relation to software lifecycles, in connection with the phasing out of software and website functions.   Only married couples who own large amounts of property and wealth tend to face marriage contracts. .