You will need a vail and up to date passport in order to get to Jamaica. The process is simple and will take you around 20 minutes. Go to the USPS website and schedule an appointment if you are applying for the first time. You will need to bring a copy of your birth certificate and an up to date ID with you. That is it! At the post office they will take your picture, you will fill out a form and pay the amount (~$185), and that is it! From there you will get your passport in the mail in in around 4-6 weeks. Please complete this as soon as possible to ensure plenty of time in the case that there may be issues.