In May 2017, the MTA started a three-month pilot program to encourage riders to give up their seats for the pregnant, disabled, or elderly. It created a website where pregnant women, the disabled, and the elderly could request specialized buttons. There are two designs: a "Baby on Board" button for pregnant mothers and a more generic "Please offer me a seat" button. This idea stemmed from the "Baby on Board" buttons that were given out across the London Underground in 2013 after the Duchess of Cambridge, Kate Middleton, wore such a button there.