A felony conviction does not, by itself, bar you from carrying a knife in California. The question “can a felon carry a knife in California” has a short answer: yes, within the same rules that apply to everyone else, with one major catch. If you are on parole or probation, a two-inch blade limit almost certainly applies to you, and that restriction will govern your daily life far more than the Penal Code does.
No Felon-Specific Knife Ban
California’s firearm ban for felons, Penal Code 29800, is written narrowly. It prohibits any felon from owning, purchasing, receiving, or possessing a firearm. It does not say “firearms and other deadly weapons.” It says firearms.1California Legislative Information. California Code Penal Code 29800 – Person Convicted of Specified Offense, Addicted to Narcotic, or Subject to Court Order
There is no equivalent statute for knives. California regulates knives by type and by how they are carried, and those rules apply to everyone. A felony record does not add a separate layer of prohibition at the state level. What it does do is raise the stakes of every judgment call a police officer or prosecutor makes about you.
Knives You Can Legally Carry
Folding knives and pocket knives are legal to carry in California, with no blade-length limit. A standard folding knife, a Swiss army knife, a box cutter, or a utility knife can go in your pocket concealed as long as the blade is folded closed.
This comes from how Penal Code 16470 defines a “dirk or dagger.” A nonlocking folding knife or pocketknife only counts as a dirk or dagger if the blade is exposed and locked into position.2California Legislative Information. California Code PEN 16470 – Dirk or Dagger Definition A closed folder in your pocket is not a concealed dirk or dagger.
Fixed-blade knives are legal too, but they must be carried openly. Penal Code 20200 says a knife carried in a sheath worn openly and suspended from the waist is not concealed.3California Legislative Information. California Code PEN 20200 – Knives and Similar Weapons A hunting knife in a visible belt sheath is fine. The same knife tucked under a jacket is a crime.
Knife Types No One Can Possess
A few categories of knife are off-limits to everyone. The underlying charge isn’t felon-specific, but a prior record makes prosecutors more willing to pursue it and more willing to file the felony version where the statute allows one.
Switchblades
Possessing, carrying, or selling a switchblade with a blade two inches or longer is a misdemeanor under Penal Code 21510.4California Legislative Information. California Code Penal Code 21510 – Switchblade Knives Penal Code 17235 defines a switchblade as a knife whose blade opens automatically by button, handle pressure, wrist flick, or gravity.5California Legislative Information. California Code Penal Code 17235 – Switchblade Knife
Assisted-opening knives are not switchblades. If a knife has a detent that holds the blade closed and requires you to push the blade open with your thumb or a thumb stud, the statute specifically excludes it.5California Legislative Information. California Code Penal Code 17235 – Switchblade Knife Many popular everyday-carry knives use this mechanism and are legal.
Ballistic Knives
Ballistic knives, which launch a blade as a projectile, are banned under Penal Code 21110. The offense is a wobbler, punishable by up to one year in county jail as a misdemeanor or 16 months, two years, or three years as a felony.6California Legislative Information. California Code Penal Code 21110 – Ballistic Knife
Disguised Knives
Penal Code 16590 lists several banned disguised knives: air gauge knives, belt buckle knives, cane swords, lipstick case knives, writing pen knives, and shobi-zue (a staff with a concealed blade).7California Legislative Information. California Code PEN 16590 – Generally Prohibited Weapons If a knife is designed to hide the fact that it is a knife, California prohibits it.
The Concealed Dirk or Dagger Risk
Carrying a concealed dirk or dagger is a wobbler under Penal Code 21310. Charged as a misdemeanor, it carries up to one year in county jail. Charged as a felony, the sentence is 16 months, two years, or three years.8California Legislative Information. California Code Penal Code 21310 – Carrying Concealed Dirk or Dagger
The definition is broad. Any knife capable of ready use as a stabbing weapon that could inflict great bodily injury or death qualifies.2California Legislative Information. California Code PEN 16470 – Dirk or Dagger Definition That reaches most fixed blades and locking folders when the blade is locked open. Your two escape routes are the ones already covered: keep a folding knife closed, and carry a fixed blade in an openly worn belt sheath.
This is where a felony record matters most in day-to-day knife law. When prosecutors decide whether to file a wobbler as a misdemeanor or a felony, they look at criminal history. A person with no record caught with a concealed fixed-blade knife may see a misdemeanor. A person with a prior felony is more likely to see the felony charge.
Places Knives Are Off-Limits
Some locations impose stricter rules than the general knife statutes, and these apply regardless of what you are carrying.
Schools. Penal Code 626.10 prohibits bringing any dirk, dagger, knife with a blade longer than two and a half inches, or folding knife with a locking blade onto K-12 school grounds or college campuses. The offense is a wobbler, punishable by up to one year in county jail or up to three years under realignment.9California Legislative Information. California Code Penal Code 626.10 – Weapons on School Grounds A locking folding knife that is legal on the street is a crime on a campus.
Government buildings. Penal Code 171b bans knives with blades longer than four inches from state and local public buildings and from public meetings. The blade must be fixed or capable of being fixed in an unguarded position. Violations carry up to one year in county jail or state prison time.10California Legislative Information. California Code PEN 171b – Weapons in Public Buildings
Airports. Federal TSA rules prohibit all knives in carry-on luggage, regardless of blade length. Multi-tools with blades are among the most commonly confiscated items at checkpoints. Knives can go in checked luggage.
When Intent Turns a Legal Knife Into a Crime
Penal Code 17500 makes it a misdemeanor to carry any deadly weapon with intent to assault.11California Legislative Information. California Code Penal Code 17500 – Possession of Deadly Weapon With Intent to Assault A kitchen knife, a large folder, or a fixed-blade hunting knife can qualify as a deadly weapon depending on the circumstances.
The controlling case is People v. Grubb (1965), where the California Supreme Court held that an otherwise innocent object becomes a prohibited weapon when the evidence shows the person intended to use it as one. The defendant’s own statements about carrying a broken baseball bat for self-defense and having struck people with it converted the bat into a weapon under the statute.12FindLaw. People v. Grubb Courts weigh the whole picture: where you were, what you said, how the knife was carried, whether it was altered, and what you were doing at the time.
Carrying a chef’s knife to a cooking class is one thing. Carrying the same knife at 2 a.m. outside a bar is another. The knife is identical; the context changes the analysis. A prior violent felony makes it easier for a prosecutor to argue the context points to a weapon.
The Parole and Probation Two-Inch Rule
Most felons who get in trouble over a knife do not get there through the Penal Code. They get there through their conditions of supervision.
Under Title 15, Section 2512 of the California Code of Regulations, parolees may not possess any knife with a blade longer than two inches. The only exceptions are kitchen knives, which must stay in your residence, and knives tied to your employment, which you may carry only while working.13New York Codes, Rules and Regulations. California Code of Regulations Title 15 Section 2512 – General Conditions of Parole The everyday folder that is legal for the general public can send you back to prison if you are on parole.
Probation conditions can be just as tight, and sometimes tighter. Judges have broad discretion to impose conditions reasonably related to the offense. If your conviction involved a weapon or violence, expect a weapons ban that reaches knives. Violating a probation condition triggers a revocation hearing, where the judge can impose the original suspended sentence.
If you are on parole or probation, the Penal Code’s relatively permissive knife rules are not the rules that govern you. Your supervision terms are. Read them, and if the two-inch limit applies, treat it as the ceiling.
What Changes When Supervision Ends
California’s expungement process under Penal Code 1203.4 allows a person who has completed probation to withdraw a guilty plea and have the case dismissed. The statute is explicit that dismissal “does not permit a person to own, possess, or have custody or control of a firearm.”14California Legislative Information. California Code PEN 1203.4 – Dismissal of Charges After Probation
For knife purposes, expungement is largely beside the point. Because California has no felon-specific knife ban in the first place, there is no knife restriction for an expungement to lift. The practical change happens when supervision ends. Once the two-inch condition is behind you, you are back on the same footing as any other adult: folding knives in your pocket, fixed blades in an open belt sheath, nothing on the banned-type list, and nothing in a school or government building.