Whether contested or uncontested, New York State requires that to end a marriage, one of the parties must provide a reason, or a "ground" for divorce. There are seven possible grounds for divorce in New York. The most recent is the No Fault divorce ground, which is the most common of all seven grounds. The No Fault divorce law became effective on October 12, 2010, and is codified as Domestic Relations Law 170(7). It permits a court to grant a divorce where one of the parties states, under oath, that the marriage has "broken down irretrievably for a period of at least six months."