When must all men register for the Selective Service?

Registration for the Selective Service System is required for all men in the United States between the ages of 18 and 26. This legal requirement ensures that the government has an up-to-date list of individuals who could potentially be called to serve in the military in the event of a draft.

Men must register at age 18, but they can do so up to age 26. Registering after turning 26 is not permitted, which is why the age range of 18 to 26 is crucial. It is important for individuals to be aware of this timeframe to ensure compliance with the law. Other age categories mentioned, such as those before 18 or at age 21, do not fulfill the requirement set by the Selective Service for registration. Therefore, recognizing the specific age range is essential for understanding the obligations of U.S. citizens regarding military service.