NOTE: Please allow an average of 5 business days to receive your library card in the mail, as this online registration does not guarantee immediate library membership upon submission. If you need to use a library card as soon as possible, it is recommended you register in person at the Warner Library's front circulation desk.

Full-time EF International Language School students may also register for a free library card but have to do so at the library, not online.

Residents of Sleepy Hollow, Tarrytown, and non-Westchester residents who work in Sleepy Hollow or Tarrytown are eligible to receive a library card. Adults eligible for a card may use the online form provided below. Library cards will be mailed to the street address (no post office boxes) provided. Please include the apartment or suite number with the street address.