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SESK: Stuff Everyone Should Know · sesk.info/civics-selective-service

Which men need to register for the Selective Service?

Men age 18 through 25.

  1. Men age 16 through 21
  2. Men age 18 through 25 ✔
  3. Men age 21 through 35

Why: USCIS says all men age 18 through 25 should register. It is required by law and makes the draft fair, if a draft is ever needed.

Huh, didn't know that: Men must register with the Selective Service within 30 days of their 18th birthday.

The dad joke
Why did the post office love registration time? So many forms to deliver.
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Sources

  1. USCIS M-1778, 128 Civics Questions and Answers (2025 version) https://www.uscis.gov/sites/default/files/document/questions-and-answers/2025-Civics-Test-128-Questions-and-Answers.pdf

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