Marijuana and Its Serious Consequences Under U.S. Immigration Law
Author: Attorney Jian Joe Zhou (jzhou@hooyou.com)
As marijuana becomes legal in more and more U.S. states, many immigrants and visa holders assume that using marijuana in a legal state is safe. Unfortunately, this misunderstanding has led to serious immigration problems for many non-U.S. citizens.
The key issue is that immigration law does not follow state law. Instead, it is governed entirely by federal law, and under federal law, marijuana remains illegal.
U.S. Immigration Law Is Federal Law
When it comes to visas, green cards, and citizenship, federal law always controls. While states are free to legalize marijuana for recreational or medical use, those decisions do not change how immigration authorities apply the law.
Marijuana Is Still Illegal Under Federal Law
Despite widespread legalization, marijuana is still classified as a controlled substance under federal law. From an immigration perspective, this means that using, possessing, purchasing, or distributing marijuana may still be treated as illegal activity.
Impact on Visa Applications
Visa application forms such as the DS-160 and DS-260 include questions about illegal drug use based on federal definitions. Admissions can lead to visa denial or revocation, while misrepresentation may cause permanent inadmissibility.
Impact on Adjustment of Status (Form I-485)
For individuals applying for a green card through adjustment of status, marijuana use can raise eligibility issues and may result in denial depending on the circumstances.
Green Card Holders and U.S. Citizenship
For green card holders, marijuana use can become a barrier to naturalization because applicants must demonstrate good moral character under federal law.
Working in the Marijuana Industry: A Hidden Immigration Risk
Even state-legal employment or investment in the marijuana industry can create serious immigration risks under federal law.
Conclusion
Marijuana-related conduct can have far-reaching immigration consequences. Anyone unsure about how marijuana may affect their immigration status should consult an experienced immigration attorney.
About the Author
Attorney Jian Joe Zhou is a Managing Partner at Zhang & Associates, P.C., with over 20 years of experience in business immigration law. He has successfully handled thousands of immigration cases, including complex H-1B petitions across various industries.
For legal inquiries, you may contact Attorney Zhou at jzhou@hooyou.com.
Founded in 1996, Zhang & Associates, P.C. offers legal services to clients worldwide in all aspects of U.S immigration law. We have successfully handled over ten thousand immigration cases.
At Zhang & Associates, P.C., our attorneys and supporting professionals are committed to providing high-quality immigration and non-immigration visa services. We specialize in NIW, EB-1, PERM, I-485 I-130, H-1B, O, L and J cases. In the past
over twenty years, we have successfully helped over ten thousand clients get green cards. If you plan to apply for a green card, please send your CV to Attorney Jerry Zhang (info@hooyou.com) for a free evaluation.
Zhang & Associates, P.C.
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(01/09/2026)