A minor can sign his or her W7 renewal application correct?

Applicant is a dependent under 18 years of age.

If the applicant is a dependent under 18 years of age, his or her parent or court-appointed guardian can sign if the child can’t sign. The parent or court-appointed guardian must type or print his or her name in the space provided and check the appropriate box that indicates his or her relationship to the applicant. If the individual is signing as a court-appointed guardian, a copy of the court-appointment papers showing the legal guardianship must be attached.

Adults, other than a parent or court-appointed guardian, can sign Form W-7 only if a Form 2848, Power of Attorney and Declaration of Representative, has been signed by a parent or court-appointed guardian authorizing the individual to sign for the applicant.

Applicant is a dependent 18 years of age or older.

If an applicant is 18 years of age or older, the applicant or a court-appointed guardian can sign or appoint a parent or another individual to sign. The individual (if other than the applicant) must type or print their name in the space provided and check the appropriate box that indicates their relationship to the applicant. If the individual is signing as a court-appointed guardian, a copy of the court-appointment papers showing the legal guardianship must be attached. Individuals other than the applicant or a court-appointed guardian must attach a Form 2848 from the applicant or court-appointed guardian authorizing them to sign the Form W-7.

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A spouse can’t sign for his or her spouse, unless the Power of attorney box is checked and Form 2848 has been attached to Form W-7.