A trigger law is a law that is unenforceable but may achieve enforceability if a key change in circumstances occurs.[1]
Examples
United States
Abortion
In the United States, thirteen states, Arkansas, Idaho, Kentucky, Louisiana, Mississippi, Missouri, North Dakota, Oklahoma,[2]South Dakota, Tennessee, Texas,[3]Utah, and Wyoming,[4] enacted trigger laws that would automatically ban abortion in the first and second trimesters if the landmark case Roe v. Wade were overturned.[5][6][7] When Roe v. Wade was overturned on 24 June 2022,[8] some of these laws were in effect, and presumably enforceable, immediately.[9] Other states' trigger laws took effect 30 days after the overturn date, and others take effect upon certification by either the governor or attorney general.[9]Illinois formerly had a trigger law (enacted in 1975) but repealed it in 2017.[10][11][12]
Eight states, among them Alabama, Arizona, West Virginia, and Wisconsin, as well as the already mentioned Arkansas, Mississippi, Oklahoma, and Texas, still have their pre-Roe v. Wade abortion bans on the law books. In North Carolina, a prohibition on abortions after 20 weeks (excepting medical emergencies) was passed in 1973 but unenforceable due to Roe v. Wade and a court ruling that it was unconstitutional[13][14] until it was reinstated by U.S. District Judge William Osteen Jr. in August 2022.[15] According to a 2019 Contraception Journal study, the reversal of Roe v. Wade and implementation of trigger laws (as well as other states considered highly likely to ban abortion), "In the year following a reversal, increases in travel distance are estimated to prevent 93,546 to 143,561 women from accessing abortion".[16]
The Affordable Care Act allowed states to opt in to a program of health care expansion, which allowed more residents to qualify for Medicaid. The cost of this expansion was primarily borne by the federal government, but the percent paid by the federal government was scheduled to decrease each year, reaching 95% by 2017 and below 90% by 2021; the remainder would be assumed by the state. As of 2017, eight states had laws that would trigger an end to participation in Medicaid expansion, if federal funding fell below a particular level.[17][18][19][needs update] Unlike abortion trigger laws prior to the overturning of Roe v. Wade, these are not unconstitutional at the moment and are only inactive because they rely on certain conditions to activate.