Department of Health and Human Services, publicly funded family planning saves nearly $4 in Medicaid expenses for every $1 spent on services. In 1982, European drug manufacturers developed mifepristone, which was initially utilized as a contraceptive, but is now generally prescribed with a prostoglandin to induce abortion in pregnancies up to the fourth month of gestation. To avoid consumer boycotts organized by anti-abortion organizations, the manufacturer donated the U.S. manufacturing rights to Danco Laboratories, a company formed by pro-abortion rights advocates, with the sole purpose of distributing mifepristone in the U.S, and thus immune to the effects of boycotts. In 1997, the FDA approved a prescription emergency contraception pill (known as the morning-after pill), which became available over the counter in 2006. In 2010, ulipristal acetate, an emergency contraceptive which is more effective after a longer delay was approved for use up to five days after unprotected sexual intercourse. Fifty to sixty percent of abortion patients became pregnant in circumstances in which emergency contraceptives could have been used. These emergency contraceptives, including Plan B and EllaOne, became another reproductive rights controversy. Opponents of emergency contraception consider it a form of abortion, because it may interfere with the ability of a fertilized embryo to implant in the uterus; while proponents contend that it is not abortion, because the absence of implantation means that pregnancy never commenced. In 2000, the Equal Employment Opportunity Commission ruled that companies that provided insurance for prescription drugs to their employees but excluded birth control were violating the Civil Rights Act of 1964. President Obama signed the Patient Protection and Affordable Care Act (ACA) on 23 March 2010. As of 1 August 2011, female contraception was added to a list of preventive services covered by the ACA that would be provided without patient co-payment. The federal mandate applied to all new health insurance plans in all states from 1 August 2012. Grandfathered plans did not have to comply unless they changed substantially. To be grandfathered, a group plan must have existed or an individual plan must have been sold before President Obama signed the law; otherwise they were required to comply with the new law. The Guttmacher Institute noted that even before the federal mandate was implemented, twenty-eight states had their own mandates that required health insurance to cover the prescription contraceptives, but the federal mandate innovated by forbidding insurance companies from charging part of the cost