A law passed by the New York City Council on April 9, 2019 prohibits employers from conducting pre-employment drug testing for marijuana. Because the law was not signed or vetoed by Mayor de Blasio within 30 days of passage, it became law on May 10, 2019. Because it will go into effect one year later, New York City employers have until May 10, 2020 to get ready to comply with this law, which is the first of its kind in the United States.