 In May 2015 Zeldin voted for H.R.36, a bill he co-sponsored, which would prohibit abortions in cases where the probable age of the fetus is 20 weeks or later, and would impose criminal penalties on doctors who violate the ban.In 2015 Zeldin co-sponsored two bills in Congress to combat Lyme disease, the Tick-Borne Disease Research and Accountability and Transparency Act of 2015 and the 21st Century Cures Act.On September 18, 2015, Zeldin voted for the Defund Planned Parenthood Act of 2015, a bill that would defund Planned Parenthood for one year unless the organization agreed not to provide abortion services.