California FSC Study Guide: Test Format, Rules, and Laws

The California FSC study guide prepares you for a 30-question written exam covering firearm safety rules, California purchase and transfer laws, safe storage, prohibited persons, straw purchases, lethal force, and the safe handling demonstration. You need 23 correct answers to pass, the fee is $25, and the certificate is valid for five years.¹ The topics below track the Department of Justice study materials and the statutes behind them, with the legal sections given the weight they carry on the test.

Test Format and Passing Score

The exam has 10 true-or-false and 20 multiple-choice questions drawn from a defined set of subjects in the California Code of Regulations.² You can miss seven and still pass. Most people who fail get caught by the legal sections rather than the safety rules, so the California purchase process, storage law, and prohibited-persons lists deserve the bulk of your study time.

The Six Basic Firearm Safety Rules

Several questions apply these rules to scenarios. Learn them as principles, not slogans.

Treat every firearm as if it is loaded. Most accidental discharges happen with guns the owner believed were empty.
Always point the muzzle in a safe direction. A safe direction is one where a discharge would not strike anyone, and that direction changes with your surroundings.
Keep your finger off the trigger until you are ready to fire. Your finger stays along the frame or outside the trigger guard until the sights are on the target and you have decided to shoot.
Know your target and what is beyond it. You are responsible for every round, including those that pass through, miss, or ricochet.
Keep the firearm unloaded when not in use. Storage and transport call for an unloaded firearm as the default.
Store firearms securely to prevent unauthorized access. This covers both physical devices and the legal duty to keep guns away from children and prohibited persons.

Scenario questions almost always trace back to one of these six. If a question asks what to do when handing a firearm to someone else, or when a malfunction occurs, work the rules in order.

California Purchase and Transfer Laws

The 10-Day Waiting Period

Every firearm purchase in California carries a mandatory 10-day waiting period. The clock starts when the dealer submits the Dealer’s Record of Sale electronically and the Department of Justice assigns a DROS number, and it runs for ten 24-hour periods from that acceptance.³ During that window, DOJ runs a background check. If the buyer is prohibited, the dealer is told not to release the gun.

If you do not pick up the firearm within 30 days of the DROS submission, the transaction is cancelled, the dealer voids it, and you start over with new fees.³

Age Requirement

California requires every firearm purchaser to be at least 21, whether the firearm is a handgun or a long gun. Federal law allows 18-year-olds to buy rifles and shotguns from licensed dealers, but California does not.

One Application Per 30 Days

Penal Code section 27535 limits buyers to one firearm application per 30-day period.⁴ In June 2025, the Ninth Circuit affirmed a federal court order blocking enforcement of the restriction, finding it unconstitutional.⁵ The statute remains on the books and the DOJ study guide still references it, so the exam can test on it even though enforcement is currently suspended.

Proof of Residency

A valid California driver’s license or DMV identification card is the starting point. You will usually need a second document showing that your current address matches the ID: a utility bill, residential lease, or property deed. Address verification is part of the DROS process, and the exam expects you to know that.

Safe Storage and Criminal Liability

California criminalizes negligent firearm storage that leads to harm. Under Penal Code section 25100, criminal storage of a firearm in the first degree applies when an owner stores a firearm where they know or should know a child or prohibited person is likely to access it, that person gains access, and death or serious bodily injury results. First-degree criminal storage carries 16 months, two years, or three years in state prison and a fine of up to $10,000, or up to a year in county jail and a fine of up to $1,000.⁶ Second-degree criminal storage covers access resulting in lesser injury or the firearm being carried to a public place, and is punishable by up to a year in county jail and a fine of up to $1,000.⁷

The exam takeaway: storing a loaded firearm where a child or prohibited person can reach it is a crime, not just an unsafe practice. Proper storage means a DOJ-approved locking device or a locked container that keeps unauthorized people out.

Firearm Safety Device Requirement

Every firearm sold in California must come with a firearm safety device that has passed DOJ testing and appears on the department’s Roster of Approved Firearm Safety Devices. The dealer usually includes it at the point of sale.⁸

Two exemptions matter for the test. If you bought an approved safety device within the past 30 days and can show the receipt and the device, you do not need a second one. Owners who can show they have a qualifying gun safe through a receipt and a signed affidavit are also exempt at the point of sale.⁸

Who Cannot Own Firearms

Federal Prohibited Persons

Under 18 U.S.C. § 922(g), you cannot possess a firearm if you:

Have been convicted of a crime punishable by more than one year in prison
Are a fugitive from justice
Are an unlawful user of or addicted to any controlled substance
Have been adjudicated as mentally defective or committed to a mental institution
Are in the United States unlawfully, or are a nonimmigrant alien without a qualifying exception
Were dishonorably discharged from the military
Have renounced your U.S. citizenship
Are subject to a qualifying domestic violence restraining order
Have been convicted of a misdemeanor crime of domestic violence

⁹

The controlled-substance category catches people off guard. Federal law still classifies marijuana as a controlled substance, so current marijuana users are federally prohibited from possessing firearms regardless of California’s legalization. Current use can be inferred from a drug conviction, an arrest pattern, or a positive drug test within the past year.

California Prohibited Persons

Penal Code section 29800 bars anyone convicted of a felony under federal, California, or any other state’s law from owning or possessing firearms. The same applies to anyone addicted to a narcotic drug, anyone with two or more convictions for brandishing a firearm, and anyone with an outstanding felony warrant they know about.¹⁰ California also prohibits possession for people subject to certain mental health holds and those convicted of specified misdemeanors.

Straw Purchases

A straw purchase is when someone who can legally buy a firearm does so on behalf of someone who cannot, or who wants to skip the background check. The study guide gives this heavy emphasis, and the exam does too.

Federal law punishes straw purchases with up to 15 years in prison and a $250,000 fine. If the firearm is later used in a violent felony, an act of terrorism, or a drug trafficking crime, the sentence can rise to 25 years.¹¹ At every dealer purchase, the buyer completes ATF Form 4473 and must answer truthfully whether they are the actual buyer. Lying on the form is itself a federal crime.

Scenario questions often present a friend or relative asking you to buy a gun for them. The transaction is illegal whenever you are not the actual buyer.

Use of Lethal Force

California follows a Castle Doctrine principle: if someone unlawfully and forcibly enters your home, you are presumed to have a reasonable fear of death or great bodily injury, which can justify lethal force. Outside the home, deadly force is justified only when you reasonably believe it is necessary to prevent imminent death or great bodily harm to yourself or another person.

Watch for these principles in scenario questions: you have no duty to retreat inside your own home, the threat must be imminent rather than speculative, and the force must be proportional. Using lethal force to protect property alone, without a threat of serious physical harm, is not legally justified.

Transporting Firearms

In a vehicle in California, a firearm must be unloaded and stored in a locked container. The glove compartment and utility compartment do not count. A locked trunk qualifies, as does a separate locked case placed in the vehicle.

For interstate travel, 18 U.S.C. § 926A provides a safe-passage protection. If you can legally possess the firearm at your origin and destination, you may transport it through states with stricter laws so long as it is unloaded and stored where it is not readily accessible from the passenger compartment. In a vehicle without a separate trunk, the firearm and ammunition must be in a locked container other than the glove compartment or console.¹² This covers transit only. It does not let you stop and carry in a state where possession would otherwise be illegal.

The Safe Handling Demonstration

Passing the written test is not the last step. Before a dealer can release a firearm, you must perform a safe handling demonstration with that specific firearm, under a DOJ-certified instructor at the dealership, using the firearm on the DROS or one of the same make and model.¹³ The demonstration covers safely picking up the firearm, verifying whether it is loaded, engaging and disengaging any safety mechanism, and clearing the action. The steps differ for semiautomatic pistols, revolvers, and long guns. The written exam tests only that the demonstration is required, not the physical steps.

Exemptions, Fees, and Taking the Test

Who Is Exempt

Not everyone needs an FSC. Penal Code section 31700 lists the exempt categories, and a few show up on the test:

Active or honorably retired California peace officers, reserve peace officers, and active or honorably retired federal law enforcement officers or agents
Active or honorably retired members of the U.S. Armed Forces, National Guard, Air National Guard, or active reserve components, with proper identification such as a military ID or VA health identification card
Holders of a valid California concealed weapons permit
Licensed California firearms dealers acting within the scope of their business
People with a valid hunting license, for long gun purchases only

People receiving back a firearm they already own, executors handling estate firearms in a representative capacity, and certain collectors of curio or relic firearms also qualify. If none of these fit, you need the certificate before any dealer will process a transfer.

Fees and ID

You need a valid California driver’s license or DMV identification card to sit for the exam. Active-duty military stationed in California can use military identification. The FSC fee is $25, which covers both the test and the physical card if you pass.²

Where to Take It and What Happens If You Fail

DOJ-certified instructors administer the exam, almost always at licensed firearm dealers. You pay, show ID, and take the 30-question test on-site. Pass with 23 or more correct, and the instructor issues your card then and there. The card is valid for five years and must be presented at every firearm purchase during that period.¹

Fail, and you can retake the test after 24 hours. Each retake costs the full $25.² There is no cap on attempts. If you have worked through the official study guide and the material above, the test is straightforward. Put your study time into the legal sections. The safety rules are intuitive for most people; the California-specific laws are where the exam separates people who studied from people who didn’t.

1
California Legislative Information. California Penal Code 31700 – Exceptions to Firearm Safety Certificate Requirement
2
California Code of Regulations. Cal. Code Regs. Tit. 11, 4253 – FSC Test Topics, Guidelines
3
Office of the Attorney General. Frequently Asked Questions – Section: Delivery of Firearms
4
California Legislative Information. California Penal Code 27535
5
Ninth Circuit Court of Appeals. Nguyen v. Bonta
6
California Legislative Information. California Penal Code 25100 – Criminal Storage of a Firearm
7
Justia Law. California Penal Code 25100-25130 – Criminal Storage of Firearm
8
Office of the Attorney General. Firearm Safety Devices – Frequently Asked Questions
9
Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts
10
California Legislative Information. California Penal Code 29800
11
Bureau of Alcohol, Tobacco, Firearms and Explosives. Don’t Lie for the Other Guy
12
Office of the Law Revision Counsel. 18 USC 926A – Interstate Transportation of Firearms
13
Office of the Attorney General. Safe Handling Demonstration Affidavit