 The Navy is standardizing the format for your assured FPO address. Take a closer look. On the first line, it's simply your name. On the second line, it's your postal service center number, PSC, and box number, whether it's virtual or actual. And on the last line, it's your FPO and your zip code, five digits only. It is recommended to use capital letters and avoid punctuation, so mail processing scanners can easily read the address and get your mail to you wherever you are. There's more information online.