ADDITIONAL U. S. PASSPORT PAGES
The U.S. Department of State will no longer add visa pages into U.S. passports beginning January 1, 2016. Previously, U.S. passport holders had the option to pay for the insertion of additional 24-page visa inserts when valid passports lacked adequate space for entry or exit visa stamps. The decision to discontinue this service was made to enhance the security of the passport and to abide by international passport standards.
If your passport no longer has available blank pages for visas or country entry and exit stamps you must now apply for a U.S. Passport Renewal