The negotiation of a sunset clause should be conducted with care and understanding what it can bring. Parties to an insurance policy may include an expiry date for certain coverages that expire automatically or do not contain a sunset provision. A sunset date is a date after which a contract is automatically terminated or a law or regulation is automatically repealed. Canada`s Anti-Terrorism Act contains a Sunset clause that came into effect in February 2007.  In Canada, all legislation enacted under Section 33 of the Canadian Charter of Rights and Freedoms (sub-section 3 of the imputation clause) has a tacit five-year expiry clause, which is the maximum term regime in the section, which may come into effect (unless an earlier date is indicated). The Congressional Budget Act regulates Congress` role in the budget process. It concerns, among other things, the rules of debate of the Senate during the vote of the budget, in particular by preventing the use of filibuster against budget decisions. The Byrd Rule, named after its main sponsor, Senator Robert C. Byrd, was passed in 1985 and amended in 1990 to amend the Finance Act and is in Section 313.
 The rule allows senators to oppose a procedural motion to any foreign provision where the foreigner is defined by one criterion among others.  The definition of aliens includes provisions that do not fall within the Committee`s jurisdiction or affect revenues or expenses. According to the National Conference of State Laws, “Colorado, Florida and Alabama passed the first Sunset laws in 1976. Texas and 21 other states followed suit in 1977. In the end, 36 states adopted broad statutes”; However, until 1992, dissatisfaction with the sunset process left only 22 states using it.  Parties to a real estate transaction may use a Sunset clause to provide that they must complete the transaction by a given date. The legal obligations of a contracting party are terminated, no longer have legal effect or are no longer applicable after sunset. A forfeiture clause is a contractual clause that requires that contractual commitments or specific provisions no longer produce legal effects after a certain period of time. Approximately 20 to 30 agencies follow the sunset process during each legislature. Agencies established by the Constitution are subject to review, but cannot be removed under the sunset provisions. In this case, the sunset period is not final in time and is triggered when a notification is filed. The idea of the general sunset provisions was debated at length in the late 1970s.
 The purpose of a sunset regime is generally to allow Parliament to pass legislation where government amendments or action are necessary fairly quickly, when the long-term effects of the legislation in question are difficult or impossible to predict. , or if the circumstances warrant such a legal structure.