Be a close relative of your mom, such as a child, spouse, or parent.

Meet the eligibility requirements, including being admissible to the US and not being subject to any grounds of inadmissibility.

Have a valid passport from your home country.

Provide required documentation, such as birth and marriage certificates, and proof of your mom's US citizenship or permanent residency.

Pass a medical exam to ensure you don't have any health issues that would make you inadmissible to the US.

Your mom must be a U.S. citizen or green card holder. You need to be her biological or adopted child and meet age/marital status requirements. Form I-130 is required.