Tahirih began its campaign to end child marriage in the United States with the aim of changing state laws that make child marriage legal and fail to protect minors from "forced marriage, human trafficking, and statutory rape disguised as marriage". In 2016, Tahirih drafted and advocated for the bipartisan passage of SB 415 / HB 703, a bill that made Virginia the first state in the country to limit marriage to legal adults, meaning individuals over the age of 18 or court-emancipated 16- or 17-year-olds. The bill, which addressed findings that 4,500 children had been married in Virginia between 2004 and 2014 according to the Virginia Department of Health, was signed into law by Governor Terry McAuliffe and went into effect on July 1, 2016.