USCIS is issuing policy guidance in the USCIS Policy Manual to clarify that violations of federal controlled substance law, including violations involving marijuana, are generally a bar to establishing good moral character for naturalization, even where that conduct would not be an offense under state law. The policy guidance also clarifies that an applicant who is involved in certain marijuana-related activities may lack good moral character if found to have violated federal law, even if such activity has been decriminalized under applicable state laws.