A school can punish off-campus student speech only in narrow situations, and the Constitution makes those situations harder to prove than they are for speech in the classroom. In California, state law adds a second layer of protection for high school and college students. The harder cases are speech that is threatening, that harasses a specific classmate, or that creates a hostile environment. Those can still bring discipline, even when the post was written at home on a Saturday.
This guide explains where the line sits, how California moves it in the student’s favor, where federal anti-discrimination law pulls the other way, and what to do in the first days after a school notices something you said or posted.
TL;DR
- Since Mahanoy Area School District v. B.L. (2021), a public school’s power over off-campus speech is limited, and a student’s vulgar, upsetting or unpopular post does not by itself justify punishment.
- Schools keep some authority over severe bullying, threats against the school community and security breaches, even off campus.
- California Education Code section 66301 bars public colleges from disciplining students solely for protected off-campus speech. Section 48950 covers high school students.
- Schools that receive federal funds must still respond to harassment that creates a hostile environment, wherever it happens. Speech that is truly harassment is not protected just because it was posted from home.
- Save everything now: the post, the school’s messages, the rule they cite, and dates.
Table of Contents
- The Supreme Court’s framework: Mahanoy
- What counts as speech a school can reach
- California gives students more than the Constitution
- Where federal anti-discrimination law pulls the other way
- Our perspective
- What to do if your school disciplines off-campus speech
- How we can help
- FAQ
- Sources
The Supreme Court’s framework: Mahanoy
The leading case is Mahanoy Area School District v. B.L., decided on June 23, 2021. A high school student, B.L., did not make the varsity cheerleading squad. Over the weekend, at a convenience store, she posted two images on Snapchat. The school suspended her from junior varsity cheerleading. The Supreme Court’s opinion held that the school had violated her First Amendment rights.
The Court did not say schools can never regulate off-campus speech. It said the school’s interest in doing so is weaker, and that certain categories, such as severe bullying or harassment, threats aimed at teachers or other students, and breaches of school security, may still justify a response. Those are the categories where a school can credibly argue it has something to protect.
Why off-campus is different
The opinion gives three reasons that a school’s authority shrinks when a student is away from campus:
- Schools rarely stand in the place of a parent (in loco parentis) once the student is off campus. A parent is usually the one supervising.
- If a school could regulate off-campus speech the way it regulates on-campus speech, it would be reaching a student’s expression for 24 hours a day. Combined with on-campus rules, that could leave almost nothing a student is free to say.
- Schools have an interest in protecting unpopular expression. The Court called schools the “nurseries of democracy,” which means they should teach students to live with disagreement instead of enforcing only approved manners.
In practice, any school action against off-campus speech has to clear a higher hurdle than the one for on-campus speech. A principal who is merely offended, or who has received a complaint from a parent, has not cleared it.
What “substantial disruption” actually means
The long-standing test comes from Tinker, where the Court said schools may regulate speech that materially disrupts classwork or involves substantial disorder or invasion of the rights of others. Mahanoy shows how seriously courts take the word “substantial.”
In B.L.'s case, the school pointed to discussion of her posts in an Algebra class and to unhappiness among cheerleaders. The Court noted that the discussion took at most five to ten minutes of class time over a couple of days. That did not meet the standard.
So a school that says “the post caused a stir” has said very little. The questions that matter are concrete:
- Did classes actually stop or change?
- Was anyone threatened, or was a specific person targeted?
- Did the post reveal private information or compromise safety?
- Is the school pointing to evidence, or only to its own discomfort?
What counts as speech a school can reach
The line is not “online versus in person” or “after 3 p.m. versus before.” It is about what the speech does. Here is a working way to sort common situations. It is a general guide, not a prediction about your case.
| Situation | Usually protected from discipline? | Why it matters |
|---|---|---|
| A crude or insulting post about the school, a coach or a team, made at home | Often yes | This is close to what the Court protected in Mahanoy. |
| An unpopular political or social opinion posted online | Very often yes | Schools have a recognized interest in protecting unpopular views. |
| A post that names and repeatedly targets a classmate | Often no | Targeted, severe bullying is one of the categories the Court said schools may address. |
| A statement that threatens a student or staff member | No | Threats against the school community are not protected the way opinion is. |
| Racial or religious harassment aimed at a specific student that makes school hostile for them | Often no | Federal civil rights law can require the school to act. |
| Posting something that compromises school security | Often no | Breaches of security are also within a school’s legitimate concern. |
The hard cases sit between the rows. A post can be offensive, even ugly, without being a threat or targeted harassment. The legal fight in those cases is usually about whether the conduct truly meets the threshold of an unprotected category, or whether the school is using “harassment” or “threat” as a label to suppress a view it dislikes.
California gives students more than the Constitution
Mahanoy sets a floor for every public school in the country. California sits above that floor. The state has written off-campus protections into its Education Code, and they work in a student’s favor in a way the federal case law alone does not.
College students: Education Code 66301
Under Education Code section 66301, the University of California, the California State University and community college districts, and their campus administrators, may not make or enforce a rule that disciplines a student solely on the basis of speech that is protected by the U.S. or California Constitution when the student is off campus. A student can bring a civil action for injunctive and declaratory relief and may be able to recover attorney’s fees if a school enforces an unconstitutional rule.
The word “solely” is doing a lot of work. The statute does not give a free pass for conduct that is harassment, threats or intimidation. A college may still adopt rules that address harassing conduct. The Assembly committee analysis of SB 1287 describes both sides of this: the bar on disciplining protected off-campus speech and the school’s ability to prevent harassment.
High school students: Education Code 48950
High school students have a parallel protection. Section 48950 applies to school districts that operate high schools, charter schools and private secondary schools. They may not make or enforce a rule that subjects a high school student to discipline for speech that would be protected from government restriction if it were engaged in off campus.
A separate provision, section 48907, gives public school pupils, including charter school pupils, the right to exercise freedom of speech and of the press, including through things like bulletin boards and distribution of printed materials. It governs expression at school, so it is useful alongside 48950 when a dispute touches both.
Why schools keep testing the edges
Schools are under pressure from both sides. Parents and community members demand action on offensive posts, and federal regulators expect responses to discrimination. Legislative debates over bills like SB 1287 show that institutions often push to broaden definitions of threatening or disruptive behavior. For students, the practical lesson is to read the specific policy a school cites. New or revised policies sometimes reclassify speech as “harassment” or a “threat” in ways that deserve a second look.
Where federal anti-discrimination law pulls the other way
Student speech rights are only half of the picture. Title VI of the Civil Rights Act of 1964 applies to schools that receive federal funds. According to the U.S. Department of Education’s Office for Civil Rights, those schools must respond to harassment based on race, color or national origin that is severe or pervasive enough to create a hostile environment. The duty does not stop at the campus edge, so online conduct and off-campus conduct can fall within it.
OCR also says that civil rights protections and the First Amendment are not opposed. When speech crosses into discriminatory harassment, a school’s response does not have to be punishment alone. It can also include countering derogatory views with competing views and building an inclusive environment. That distinction matters for students on both sides of a dispute:
- If you were harassed, a school that does nothing because “it happened online” may be failing its legal duty.
- If you are accused, a school that jumps straight to discipline for protected opinion may be violating yours.
In California, the Attorney General has addressed this balance directly. Its legal alert OAG-2023-03, issued November 9, 2023, gives guidance on students’ free speech rights and schools’ obligations to prevent discrimination and harassment. It is a useful read for any student, parent or administrator trying to see how the two sets of rules fit together.
If the underlying problem is discrimination, our guides on what Title VI discrimination looks like and how Title IX and Title VI differ explain which law may fit your facts.
Our perspective
We see two mistakes again and again. The first is a school that treats an unpopular post as an emergency and reaches for suspension or removal from a team, a program or a campus job, without asking whether the speech was protected. The second is the opposite: a school that tells a harassed student that nothing can be done because the conduct happened on a phone, at night.
Both are failures to apply the law as it is written. Our work as a civil rights firm is built around the idea that fundamental rights should not depend on whether the person asserting them is popular or whether the institution on the other side is powerful. We take cases that larger firms avoid, and we know that a student facing a disciplinary panel is often alone with a deadline and a thick packet of policy language.
Our advice is practical. Do not delete anything. Do not argue the case on social media. Get the actual rule the school relies on in writing, and ask which part of your conduct it says broke that rule. Then check whether the school is really claiming a threat, targeted harassment or substantial disruption, or only that someone was offended. If the answer is the second, the school may be on weaker ground than it sounds.
— Mark
What to do if your school disciplines off-campus speech
The first days matter. Steps that tend to help:
- Preserve the evidence. Take screenshots of the post with the date and time, the account it came from, and any comments. Keep every email, text and letter from the school.
- Ask for the specific rule in writing. Which policy, which section, and what conduct the school says violated it.
- Note where and when it happened. Off-campus status is central. Record whether you used school devices, school networks or school accounts, because that can change the analysis.
- Write down the impact. If the school’s action, or its inaction on harassment, kept you from classes, activities, athletics or housing, document how. These facts are important to any legal claim.
- Check which statute applies. For a public college in California, section 66301 is the starting point. For a high school, section 48950. For harassment on a protected basis, think about Title VI.
- Mind the deadlines. Disciplinary appeals and complaints to agencies often have short windows. Ask the school for them in writing.
- Speak with a civil rights attorney before you give a formal statement to a disciplinary panel, especially if the school might also act on harassment allegations.
Students with disabilities have an extra layer to consider. If a student’s conduct or communication style is connected to a disability, the discipline question can overlap with school accommodations. For background on how schools and families think about that, see this explanation of legal school accommodations for autistic students.
How we can help
If your school has disciplined you or your child over something said or posted off campus, or has ignored harassment because it happened online, we can review the facts. We handle student discrimination matters and First Amendment claims, and we are admitted in federal courts nationwide. We handle most cases on a contingency-fee basis, so clients pay nothing unless there is a recovery. Contact us through our site for a free case consultation.
For related reading, see our guides on First Amendment retaliation and taking legal action against persistent school harassment.
FAQ
Can a public school punish me for a social media post I made at home?
Sometimes, but only in narrow cases. After Mahanoy, schools have a limited interest in off-campus speech, and posts that are merely vulgar, critical or unpopular are generally protected. Severe bullying, threats and targeted harassment are the kinds of conduct a school may still address. In California, state law adds further limits for public colleges and high schools.
Does California law protect private school students?
It depends on the school type. Section 48950 expressly covers private secondary schools, so high school students in California private schools have protection under it. The constitutional claim in Mahanoy concerns government actors, so it generally applies to public schools. Rules for private colleges differ, so ask about the specific institution.
What if the school says my speech created a hostile environment for someone else?
Then the question becomes whether the conduct was severe or pervasive enough to meet the legal threshold, or whether the label is being used to punish a viewpoint. Federal civil rights law does require schools to respond to real harassment, including off campus. The school must still respect protected speech, and it has options other than punishment.
Can I sue if my school violated my off-campus speech rights?
Possibly. California’s college statute allows students to bring civil actions for injunctive and declaratory relief and potentially to recover attorney’s fees. Federal First Amendment claims may also be available. Whether a case is worth bringing depends on your facts, so speak with a civil rights attorney promptly.
Sources
- Mahanoy Area School District v. B.L., U.S. Supreme Court opinion (2021)
- Mahanoy Area School District v. B.L., Legal Information Institute
- California Education Code section 66301
- California Education Code section 48950
- California Education Code section 48907
- Assembly Higher Education Committee analysis of SB 1287
- California Attorney General legal alert OAG-2023-03