US schools take academic integrity (honest academic work) very seriously. Practices that are normal in some countries can be a serious violation here.
What counts as a violation
Plagiarism: using someone else's words or ideas without a citation (a note showing the source). This includes copying a sentence from a website, translating someone's text into English, or reusing your own old paper without permission.
Unauthorized collaboration: working with classmates on homework that must be done alone, or sharing your answers.
Cheating on exams: notes, phones, smart watches or talking during a test.
Contract cheating: paying someone or a website to do your work.
Using AI tools when they are not allowed, or not saying you used them when the rules require it.
Making up data or sources.
AI tools: rules differ by class
There is no single rule. One professor allows AI for brainstorming; another bans it completely; another requires you to describe how you used it.
Read the AI policy in each syllabus.
If it is unclear, ask in writing: "May I use AI tools to check grammar in this essay?"
Keep your drafts, notes and version history. They help if someone questions your work.
Never paste AI text into an assignment as your own words unless the rules say it is allowed.
What happens after a violation
It depends on the school and how serious it is: a zero on the assignment, an F in the course, a mark on your record, suspension or dismissal (being removed from the school).
Why it matters for your visa
If you are suspended or dismissed, the school usually ends your record in SEVIS (the government student database).
For F-1 students, a SEVIS record ended for a violation usually means no grace period: you must leave the US soon or apply for reinstatement, which is not guaranteed.
J-1 students face similar results through their program sponsor.
A violation can also affect OPT, future visas and graduate school applications.
Do not ignore the email. Read the deadline.
Ask for the process in writing. Most schools let you explain your side and bring an advisor.
Tell your international student office (DSO) early, so they can explain what it means for your status.
Be honest. A clear explanation and your drafts help.
Cite every source, including ideas you put in your own words. Learn the style your class uses (APA, MLA, Chicago).
Use the writing center to learn citation.
Ask before you collaborate.
Thinking small copying is fine "because everyone does it".
Sharing your old assignments with a friend. Both students can be punished.