Secnav 55121 2026

1. Click ‘Get Form’ to open the secnav 55121 in the editor.
2. Begin by entering your Last Name in Block 1, followed by your First Name in Block 2 and Middle Name in Block 3.
3. If applicable, check the box for Name Suffix in Block 4. Then indicate if you are Hispanic or Latino in Block 5.
4. In Block 6, select your Race and specify your Gender in Block 7.
5. Fill out your Date of Birth in Block 8, City of Birth in Block 9, and State of Birth in Block 10.
6. Complete Block 11 with your Country of Birth and check the appropriate box for US Citizenship in Block 12.
7. If not a US Citizen, provide the name of your Country of Citizenship. In Blocks 14 to 17, present two forms of identity source documents as specified.
8. Continue filling out personal details such as Weight (Block 20), Height (Block 21), Hair Color (Block 22), and Eye Color (Block 23).
9. Finally, review all information for accuracy before signing and dating the form at the end to attest that it is true and complete.

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