22 CFR § 53.4 - Optional use of a valid passport.

---
identifier: "/us/cfr/t22/s53.4"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "22 CFR § 53.4 - Optional use of a valid passport."
title_number: 22
title_name: "Foreign Relations"
section_number: "53.4"
section_name: "Optional use of a valid passport."
chapter_name: "DEPARTMENT OF STATE"
subchapter_number: "F"
subchapter_name: "NATIONALITY AND PASSPORTS"
part_number: "53"
part_name: "PASSPORT REQUIREMENT AND EXCEPTIONS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "8 U.S.C. 1185; 8 U.S.C. 1185 note (section 7209 of Pub. L. 108-458); E.O. 13323, 69 FR 241 (Dec. 30, 2003)."
regulatory_source: "71 FR 68430, Nov. 24, 2006, unless otherwise noted."
cfr_part: "53"
---


# 53.4 Optional use of a valid passport.

Nothing in this part shall be construed to prevent a citizen from using a valid U.S. passport in a case in which that passport is not required by this part 53, provided such travel is not otherwise prohibited.