Pepper spray laws in San Diego track California’s statewide rules: adults may buy, carry, and use a pepper spray canister of up to 2.5 ounces for genuine self-defense, provided it carries the warning label state law requires. Felons, people with assault convictions, and anyone addicted to a narcotic drug cannot possess it at all. Minors generally cannot either, with a narrow exception at 16 and 17 with a parent’s consent. Misusing the spray is a crime that can be charged as a felony, and several San Diego venues ban canisters on-site even when the carrier is otherwise legal.
What Canister Is Legal to Carry
California Penal Code Section 22810(e)(1) caps a civilian pepper spray canister at 2.5 ounces net weight of aerosol spray. The same subsection bans tear gas weapons that fire a projectile or dispense their contents by any method other than an aerosol spray, so gel launchers, foggers, and larger industrial-style canisters are off-limits.1California Legislative Information. California Code PEN 22810 – Tear Gas and Tear Gas Weapons
Every canister sold in California has to display an exact warning: “WARNING: The use of this substance or device for any purpose other than self-defense is a crime under the law. The contents are dangerous — use with care.” Section 22810(f) also requires a printed insert with directions, first aid information, safety and storage guidance, and the legal consequences of misuse. If the canister you’re holding doesn’t have those, it wasn’t sold through a lawful California channel.1California Legislative Information. California Code PEN 22810 – Tear Gas and Tear Gas Weapons
Who Cannot Carry It
Section 22810(a) bars anyone convicted of a felony from buying, possessing, or using pepper spray. The same ban reaches anyone convicted of any crime involving assault under federal, California, or any other jurisdiction’s laws, and anyone previously convicted of misusing tear gas under Section 22810(g). Section 22810(b) extends the prohibition to anyone addicted to a narcotic drug.1California Legislative Information. California Code PEN 22810 – Tear Gas and Tear Gas Weapons
Minors are generally barred by Section 22810(c) and (d), but Section 22815 opens a door for older teens. A 16- or 17-year-old may purchase and possess pepper spray if they are accompanied by a parent or guardian, or carry that parent’s or guardian’s written consent.2California Legislative Information. California Code, Penal Code PEN 22815
That consent is not a formality. Under Section 22815(c), the parent or guardian who authorized the minor’s possession is jointly and severally liable for damages caused by the minor’s negligent or wrongful use of the spray. Sign the paper, share the lawsuit.2California Legislative Information. California Code, Penal Code PEN 22815
When You Can Legally Use It, and What Misuse Costs
Pepper spray is only lawful in self-defense, and California law requires a reasonable belief that you face an imminent threat of bodily harm. Spraying someone during an argument that hasn’t turned physical, out of anger, or after a confrontation has ended is not self-defense.
Section 22810(g)(1) makes any use of pepper spray for a purpose other than self-defense a wobbler. As a misdemeanor it carries up to one year in county jail, a fine of up to $1,000, or both. Charged as a felony, the same conduct carries 16 months, two years, or three years in state prison.1California Legislative Information. California Code PEN 22810 – Tear Gas and Tear Gas Weapons
Spraying a peace officer is treated more harshly. Under Section 22810(g)(2), if the victim is an officer performing official duties and the person spraying them knows or should know that, the offense carries 16 months, two years, or three years in state prison, a fine of up to $1,000, or both. The county jail option is gone.1California Legislative Information. California Code PEN 22810 – Tear Gas and Tear Gas Weapons
San Diego Places That Ban Pepper Spray On-Site
A legal canister in a legal pocket can still be prohibited by whoever controls the door. Several San Diego venues screen for and refuse pepper spray.
Stadiums
Petco Park lists pepper spray and mace under “Weapons of Any Other Type” on its prohibited items list, and bag screening at the gates will catch a canister.3San Diego Padres. Petco Park – Entry Policies Snapdragon Stadium names “Mace and pepper spray” on its own prohibited list.4Snapdragon Stadium. A-Z Guide
Courthouse
Everyone entering the San Diego County Courthouse passes through weapons screening run by the Sheriff’s Department. Pepper spray, mace, and tear gas are on the prohibited list; if you arrive with a canister, you will be asked to leave and return without it.5Superior Court of California – County of San Diego. Jury Services
Federal Buildings
Federal facilities operate under 41 C.F.R. Part 102-74, which prohibits dangerous weapons on federal property. Each facility’s Security Committee sets its own prohibited items list, so pepper spray’s status can vary building to building. If it’s on that building’s list, you’ll have to remove it from the property before entering, regardless of its lawful status under California law.6Homeland Security. FAQ Regarding Items Prohibited from Federal Property
Buses and Trolleys
San Diego MTS Rules for Riding prohibit firearms and knives on buses and trolleys and give drivers and security discretionary authority to refuse any item they consider dangerous. Pepper spray isn’t named, but that discretion means a canister can be refused or confiscated.7San Diego Metropolitan Transit System. Rules for Riding
Schools and Military Bases
Local school districts, college campuses, and military installations around San Diego each set their own policies. Rules vary by district, campus, and command, so check with the specific campus security office or base Security Forces before carrying.
Flying Out of San Diego, or Shipping It
TSA prohibits pepper spray in carry-on luggage, and any canister found at security screening at San Diego International is confiscated. In checked baggage, one container of no more than 4 fluid ounces (118 mL) is allowed if it has a safety mechanism to prevent accidental discharge. Self-defense sprays containing more than 2 percent by mass of CS or CN tear gas are prohibited entirely.8Transportation Security Administration. Pepper Spray
TSA permission is not airline permission. American Airlines, Delta, and JetBlue, among others, prohibit pepper spray in all luggage. Check your carrier’s hazardous materials policy before packing a canister in a checked bag.
USPS allows pepper spray in domestic ground shipping only. The package must be labeled as hazardous materials and sized within standard limits. Air mail and international shipment are not allowed.9United States Postal Service. Hazardous Materials Table: Postal Service Mailability Guide
After an Exposure
The active ingredient, oleoresin capsicum, is an oily extract from hot peppers that clings to skin and mucous membranes. Water alone won’t lift it well.
Remove contaminated clothing and seal it in a plastic bag. Shower in cold water as soon as possible, washing with a strong dishwashing liquid rather than regular soap or shampoo, since dish soap breaks down the oily residue. Rinse each area separately so contaminated water doesn’t run onto clean skin. Don’t rub your eyes, even when the burning is intense; eye drops can help with the dryness that lingers for days.
Seek medical attention for continued difficulty breathing, coughing up discolored substances, or a rapid or abnormal heart rate more than 24 hours after exposure.10NCBI Bookshelf. Tear Gas and Pepper Spray Toxicity