To direct the Secretary of Defense to provide certain TRICARE beneficiaries with the opportunity to retain access to TRICARE Prime.

Amends the National Defense Authorization Act for Fiscal Year 2013 to direct the Secretary of Defense (DOD) to ensure that each beneficiary other than an active-duty beneficiary who is enrolled in TRICARE Prime (a DOD managed health care program), as of September 30, 2013, may make a one-time election to continue such enrollment, notwithstanding that an existing TRICARE contract does not allow for such enrollment based on the location in which the beneficiary resides. Allows the beneficiary to continue in such enrollment while residing in the same ZIP Code in which the beneficiary resided at the time of election.

Allows such a beneficiary to elect, at any time, to instead enroll in TRICARE Standard.