Registry entry

United States Selective Service Registration

Register an eligible individual with the U.S. Selective Service System, as required by law of most people assigned male at birth between the ages of 18 and 25 living in the United States. This document describes the eligibility window and the small fixed set of registrant inputs. It does not submit the registration; the live sss.gov source is always authoritative (see verification).

You are viewing v1.0.0

The latest published version of this schema is v1.1.0 — see the current reference page. Published versions are immutable; this page stays for agents pinned to us/sss/selective-service-registration@1.0.0.

Registry entry

us/sss/selective-service-registration

Jurisdiction
United States · national
Version
1.0.0
Verification
draft
Authority
U.S. Selective Service System

GovSchema spec v0.1

Authoritative source https://www.sss.gov/register/

Machine access

Schema document
registry/us/sss/selective-service-registration/1.0.0/schema.jsonapplication/schema+json
Verification record
registry/us/sss/selective-service-registration/1.0.0/VERIFICATION.mdtext/markdown
Registry catalog
registry/index.jsonone record per schema id

Field reference

12 fields across 2 steps, read from the published schema.json — names, types, requiredness, and validation as the document states them. The live government form remains the authoritative source.

About you

  • lastName string required

    Personal identifier; handle as sensitive data. Your legal last name.

    length: 1–100
  • firstName string required

    Personal identifier; handle as sensitive data.

    length: 1–100
  • middleName string optional

    Personal identifier; handle as sensitive data.

    length: 0–100
  • dateOfBirth date required

    Personal identifier; handle as sensitive data. Full date, YYYY-MM-DD. Registration is required for most people assigned male at birth from their 18th birthday until they turn 26; the online service accepts registrations from age 18 up to (but not including) age 26. This age window is a rule v0.1 cannot enforce as a constraint.

  • socialSecurityNumber string required

    Personal identifier; handle as sensitive data. Your 9-digit U.S. Social Security number. Those without an SSN must contact the Selective Service System to register by another method.

    pattern

Current address and contact

  • mailingAddressLine1 string required

    Personal identifier; handle as sensitive data. Your current mailing address.

    length: 1–120
  • mailingAddressLine2 string optional

    Personal identifier; handle as sensitive data.

    length: 0–120
  • mailingAddressCity string required

    Personal identifier; handle as sensitive data.

    length: 1–80
  • mailingAddressState string required

    Personal identifier; handle as sensitive data. Two-letter USPS state or territory abbreviation, e.g. CA, NY, TX.

    pattern
  • mailingAddressPostalCode string required

    Personal identifier; handle as sensitive data. 5-digit or ZIP+4 format, e.g. 90210 or 90210-1234.

    pattern
  • email string optional

    Personal identifier; handle as sensitive data. A valid email address; used to send a registration confirmation.

    length: 0–254
  • phone string optional

    Personal identifier; handle as sensitive data. In international E.164 format, e.g. +12025551234.

    pattern

Verification record

This file is the source-review record for this document version, per the manual-source-review-v1 practice. It documents the provenance of the published fields and flow and states the current verification claim honestly.

Current claim

  • status: draft
  • verification.method: manual-source-review-v1
  • verification.lastVerifiedAt: 2026-06-30

The document was derived from and cross-checked against the official source below, but the full field-by-field comparison the practice requires (manual-source-review-v1 → Procedure step 2) has not yet been completed and recorded against the live online registration flow. It therefore remains draft, not verified.

Source examined

  • Document (id, version): us/sss/selective-service-registration / 1.0.0
  • Spec version: GovSchema 0.1.0
  • Authority: U.S. Selective Service System (SSS)
  • Primary source URL: https://www.sss.gov/register/
  • Official form id: none (online registration service; no public form number)
  • Retrieved / reviewed: 2026-06-30 (page confirmed live at authoring time)
  • Reviewer: GovSchema Engineering (initial authoring source-review)

What was confirmed against the source

| Source element | Field(s) | |---|---| | Online registration collects full name | lastName, firstName, middleName | | Date of birth (registration required for most people assigned male at birth, ages 18 through 25) | dateOfBirth | | Social Security number (those without one must contact SSS to register another way) | socialSecurityNumber | | Current mailing address | mailingAddress* | | Contact details for confirmation | email, phone |

Temporal rule (not encoded structurally in v0.1)

Eligibility is an age window: registration is required from the 18th birthday until the person turns 26, and the online service accepts registrations only within that window. v0.1 has no temporal-constraint mechanism, so the rule is recorded in the dateOfBirth description rather than encoded.

Scope and sensitivity notes

  • Selective Service registration is legally mandated for most people assigned male at birth in the relevant age range; this document collects inputs only and never submits, consistent with the GovSchema boundary.
  • Dual citizens, U.S. citizens living abroad, and those without an SSN have alternative registration paths (embassies/consulates, contacting SSS). Those branches are described on the live source and not modelled as separate fields in this v1.0.0; they are candidates for a future minor version.

What is NOT yet independently verified

  • The exact field order and labels of the live online registration flow were not captured screen-by-screen; sourceRef annotations are indicative.
  • Constraint patterns (SSN, state, ZIP, phone) are reasonable encodings consistent with the rest of the registry, not citations of a published SSS validation rule.

Path to a verified claim (next step)

To advance to status: verified, a reviewer applies manual-source-review-v1 (Procedure step 2 field-by-field against the live registration flow, step 3 flow), confirms the source is authoritative, resolves any discrepancy by shipping a new schema version (immutability — VERSIONING §3, practice Procedure step 5), and records the outcome here plus sets status: verified with a current verification.lastVerifiedAt/nextReviewBy.

Re-verification

Per the practice's Cadence, nextReviewBy is set to 2026-12-30 (6 months). Re-check the source on or before that date and on any source.url change.

View the raw record (VERIFICATION.md)

Version history

Independent and non-affiliated

GovSchema is an independent, open-source project. This reference is not produced, reviewed, or endorsed by U.S. Selective Service System or any government. The authoritative source is always the live government form and its official instructions.