California Penal Code 240 defines assault as an unlawful attempt, coupled with the present ability, to use force or violence against another person. No physical contact is required for the crime to be complete. A conviction is a misdemeanor carrying up to six months in county jail and a fine of up to $1,000, but the penalties climb quickly when the victim belongs to a protected class or a weapon is involved.1California Legislative Information. California Penal Code 240
What Counts as Assault Under Section 240
The statute itself is a single sentence. California’s standard jury instruction, CALCRIM No. 915, breaks it into four things the prosecution must prove beyond a reasonable doubt:
- You did an act that, by its nature, would directly and probably result in force being applied to another person.
- You did that act willfully, meaning on purpose.
- You were aware of facts that would lead a reasonable person to realize the act could result in force being applied to someone.
- At the moment you acted, you had the present ability to apply that force.2Justia. CALCRIM No. 915 Simple Assault
One point trips people up. The prosecution does not have to prove you intended to hurt anyone or intended to break the law. Throwing a punch counts even if you expected to miss. What matters is that you willfully did an act that would naturally lead to force.
Present ability is the other piece that matters. Someone yelling threats from across a parking lot generally has not committed assault, because they cannot actually follow through at that distance. Verbal threats without an accompanying physical act and the ability to carry it out do not satisfy Section 240.
Assault vs. Battery
People use the two words interchangeably, but California treats them as separate crimes. Assault under Section 240 is the attempt to use force. Battery under Section 242 is the actual use of force or violence.3California Legislative Information. California Penal Code 242 Throw a punch and miss: assault. Land it: battery. A misdemeanor battery conviction carries up to $2,000 in fines and up to six months in county jail.4California Legislative Information. California Penal Code 243 The two are often filed together when an attempt succeeded, but assault stands on its own even when no one was touched.
Penalties for Simple Assault
Simple assault is a misdemeanor. Under Penal Code 241(a), the maximum exposure is:
- Up to six months in county jail
- A fine of up to $1,000
- Both jail and a fine, at the court’s discretion5California Legislative Information. California Penal Code 241
Many first-time offenders receive informal probation rather than jail. Courts typically attach conditions such as community service or anger management, and may issue a protective order requiring you to stay away from the victim.
Enhanced Penalties When the Victim Is a Protected Person
Penalties climb when the victim was performing their duties in certain protected roles and you knew, or reasonably should have known, what that role was.
Assault on a parking control officer carries a fine of up to $2,000 and up to six months in county jail. The fine doubles; the jail ceiling stays the same.
Assault on a peace officer, firefighter, EMT, lifeguard, process server, traffic officer, code enforcement officer, animal control officer, search and rescue member, or emergency room healthcare worker carries a fine of up to $2,000 and up to one year in county jail. Doctors and nurses providing emergency care outside a hospital are covered too. The doubled jail exposure is the key difference from a basic Section 240 conviction.5California Legislative Information. California Penal Code 241
When Assault Stops Being a Section 240 Case
Simple assault under Section 240 is always a misdemeanor. Bring a weapon or serious force into it, and the charge moves to Penal Code 245, where felony exposure begins.
- Assault with a deadly weapon that is not a firearm, or with force likely to produce great bodily injury: two, three, or four years in state prison, or up to a year in county jail, or a fine up to $10,000, or both. Prosecutors can file either as a misdemeanor or felony.
- Assault with a firearm: two, three, or four years in state prison, or six months to a year in county jail, plus a fine up to $10,000.
- Assault with a semiautomatic firearm, an assault weapon, or a machinegun: state prison terms that climb higher still.6California Legislative Information. California Penal Code 245
The distance from a $1,000 misdemeanor to state prison is why the specific facts of an encounter matter so much. Picking up a bottle during an argument can shift a case from Section 240 to Section 245.
Common Defenses
Self-defense or defense of others. This is the most common defense, and CALCRIM No. 915 specifically lists it among the elements prosecutors may have to disprove. You generally need to show you reasonably believed you or someone else faced an imminent threat of bodily harm, and that the force you used was no more than the situation required. Shoving someone about to punch you is not the same as hitting someone who insulted you five minutes earlier.
No willful act. Assault requires an intentional act. Genuinely accidental contact, like bumping into someone while turning a corner, is not assault. Convincing a jury that what looked intentional was accidental is the hard part, and context matters.
No present ability. Someone restrained by others, separated by a locked door, or standing well out of reach has not committed assault under California law, even if their words were threatening.
Consent. In narrow circumstances, consent can defeat the charge, most often in contact sports or mutual combat. It is a hard defense to run, because the consent has to be clearly established and the conduct cannot go beyond what was agreed to.
Consequences Beyond the Sentence
A Section 240 conviction triggers a ten-year prohibition on owning or possessing firearms under Penal Code 29805.7California Department of Justice. Firearms Prohibiting Categories If a firearm was involved in the assault, the ban becomes a lifetime one. For anyone who owns guns or needs them for work, this can be more disruptive than the sentence itself.
A conviction also produces a criminal record that surfaces on background checks for employment, housing, and professional licensing. Non-citizens should be especially careful. Simple assault is generally not treated as a “crime of violence” for deportation purposes under federal immigration law, but the analysis turns on the specific facts and the language of any plea. Anyone facing assault charges who is not a U.S. citizen should talk to an immigration attorney before entering a plea.
How Long Prosecutors Have to File
Because simple assault is a misdemeanor, prosecutors must file charges within one year of the alleged offense under Penal Code 802. If that deadline passes without a filing, the case cannot go forward. Related felony charges, such as assault with a deadly weapon under Section 245, carry longer deadlines. The clock generally starts on the date of the incident, not the date of the police report.