California Penal Code 311 is the state’s obscenity statute. It defines what counts as obscene material under a three-part statewide test and, through its subsections (311.1 through 311.11), criminalizes distributing, producing, advertising, and performing obscene content. When minors are depicted, the law goes further and criminalizes mere possession. Penalties range from misdemeanor fines up to $1,000 to state prison sentences of up to eight years, plus mandatory lifetime sex offender registration for the most serious offenses.
How California Defines Obscene Material
Section 311(a) sets a three-part test. Prosecutors have to prove every part; if one fails, the material stays protected speech.1California Legislative Information. California Penal Code PEN 311
- An average person applying contemporary statewide standards would find the work as a whole appeals to a shameful or unhealthy interest in sex or nudity.
- The work as a whole depicts sexual conduct in a way that is patently offensive under those statewide standards.
- The work as a whole lacks serious literary, artistic, political, or scientific value.
That last element is sometimes called the SLAPS prong, and it functions as a built-in defense: material with serious value cannot be obscene under the statute, however explicit it is. The framework traces back to the U.S. Supreme Court’s 1973 decision in Miller v. California.2Justia. Miller v. California
One point of difference from federal law matters. The federal Miller test uses “contemporary community standards,” which usually means local norms. California’s statute specifies “contemporary statewide standards,” so a jury in San Francisco and a jury in a rural county are supposed to apply the same benchmark.1California Legislative Information. California Penal Code PEN 311
Distribution, Sale, and Advertising of Adult Obscenity
Section 311.2(a) makes it a crime to knowingly bring obscene material into California for sale or distribution, or to produce, publish, or print it in the state with intent to distribute. A first offense is a misdemeanor.3California Legislative Information. California Penal Code PEN 311.2
Penalties come from Section 311.9(a): a fine up to $1,000 (plus $5 per additional unit, capped at $10,000), up to six months in county jail (plus one day per additional unit, capped at 360 days), or both. A prior conviction under any section in the 311 chapter turns a second 311.2(a) violation into a felony punishable by state prison.4California Legislative Information. California Penal Code 311.9
Section 311.5 makes it a misdemeanor to write, create, or solicit advertising that promotes material as obscene. This one catches people off guard: you can be charged even if the underlying material would not actually meet the legal definition of obscenity, so long as you marketed it as obscene.5California Legislative Information. California Penal Code PEN 311.5
An important boundary: private possession of adult obscene material for personal use is generally not a crime under these provisions. The offense is defined by distribution. The moment someone sells, trades, or offers the material to others, it becomes criminal.
Obscene Live Performances
Section 311.6 covers live conduct rather than recorded material. Knowingly performing, producing, or exhibiting obscene live conduct in front of even a single audience member in a public place, or a place open to the public, is a misdemeanor. It does not matter whether the venue charges admission or requires a membership.6California Legislative Information. California Penal Code 311.6
Offenses Involving Minors
When material depicts a person under 18 engaged in sexual conduct, the 311 series shifts into a much harsher regime. Several overlapping sections cover different roles in the chain.
Distribution: Section 311.1 and 311.2(b)
Section 311.1 covers knowingly distributing, exhibiting, or exchanging obscene material depicting a minor. It is a wobbler. As a misdemeanor it carries up to one year in county jail and a fine up to $1,000; as a felony it carries state prison and a fine up to $10,000.7California Legislative Information. California Penal Code PEN 311.1
Section 311.2(b) adds a separate, heavier layer for commercial distribution. Knowingly distributing material depicting a minor for commercial gain is a straight felony punishable by two, three, or six years in state prison and a fine up to $100,000.3California Legislative Information. California Penal Code PEN 311.2
Developing or Duplicating: Section 311.3
Section 311.3 targets developing, duplicating, printing, or exchanging material showing a person under 18 in sexual conduct. Prosecutors do not have to prove the material meets the full obscenity definition here. The depiction alone is enough. A first offense carries a fine up to $2,000, up to one year in county jail, or both. A prior conviction under the chapter elevates it to a state prison felony.8California Legislative Information. California Penal Code PEN 311.3
Using a Minor to Produce Content: Section 311.4
Section 311.4 carries some of the heaviest penalties in the chapter. Hiring or using a minor for acts described in Section 311.2 is a wobbler punishable by up to $2,000 and one year in county jail, or by state prison. Repeat offenders face an additional fine up to $50,000.9California Legislative Information. California Penal Code PEN 311.4
Knowingly persuading, inducing, or coercing a minor to pose or model for sexual content for commercial purposes is a straight felony punishable by three, six, or eight years in state prison. Parents or guardians who knowingly permit a child under their control to participate face the same penalty.9California Legislative Information. California Penal Code PEN 311.4
Possession: Section 311.11
Section 311.11 criminalizes the bare act of possessing material depicting a minor engaged in sexual conduct. No intent to distribute is required. Knowing possession alone is enough, and a first offense is a felony punishable by state prison or up to one year in county jail, a fine up to $2,500, or both.10California Legislative Information. California Penal Code PEN 311.11
A repeat conviction, or a conviction by someone previously required to register as a sex offender, is a felony carrying two, four, or six years in state prison.11California Legislative Information. California Penal Code 311.11
AI-Generated and Digitally Altered Depictions
Sections 311.1, 311.2, 311.3, 311.4, and 311.11 have been updated to cover computer-generated and AI-generated content that depicts what appears to be a person under 18 engaged in sexual conduct. No real child needs to have been involved in the production for the statutes to apply.10California Legislative Information. California Penal Code PEN 311.11
Under Section 311.11(a)(2), knowingly possessing AI-generated or digitally altered obscene content depicting what appears to be a minor carries the same penalty as possession of material produced with an actual child. Commercial distribution of such material under Section 311.2(b) is a felony carrying up to six years in prison and a $100,000 fine.3California Legislative Information. California Penal Code PEN 311.2 Arguing that no real person was involved does not defeat these charges.
Sex Offender Registration
Convictions under several 311 sections trigger mandatory sex offender registration under Penal Code 290. The triggering offenses include violations of Section 311.1, subdivisions (b), (c), or (d) of Section 311.2, and Sections 311.3, 311.4, 311.10, and 311.11.12California Legislative Information. California Penal Code PEN 290
Felony convictions under these sections carry Tier 3 classification, which is the most serious tier and requires a minimum registration period of life.12California Legislative Information. California Penal Code PEN 290 For many people convicted under the 311 series, this consequence outlasts the prison sentence and reshapes housing and employment permanently.
Defenses and Exemptions
Section 311.8 provides a defense for acts committed in aid of legitimate scientific or educational purposes. A defendant can raise that purpose as a shield.13California Legislative Information. California Penal Code PEN 311.8
Section 311.3 contains its own separate exemptions. Law enforcement and prosecution agencies investigating crimes are exempt, as are people engaged in legitimate medical, scientific, or educational activities. Lawful conduct between spouses is excluded. Employees of commercial film developers acting within the scope of their employment and following employer instructions are also shielded, provided they have no financial interest in the developer.8California Legislative Information. California Penal Code PEN 311.3
The three-prong test itself works as a constitutional defense. Material with serious literary, artistic, political, or scientific value cannot be found obscene. Because prosecutors must prove all three prongs, failing any one produces an acquittal.2Justia. Miller v. California
When Federal Law Also Applies
Penal Code 311 does not preempt federal obscenity law. Federal statutes at 18 U.S.C. Sections 1461 through 1470 cover mailing, importing, and interstate transportation of obscene material, with penalties up to five years in prison for a general offense and up to ten years for knowingly transferring obscene material to a minor under 16.14U.S. Department of Justice. Citizens Guide to U.S. Federal Law on Obscenity
For material involving minors, 18 U.S.C. Section 1466A carries a mandatory minimum of five years and a maximum of twenty years for a first offense of producing, distributing, receiving, or possessing obscene depictions of a minor. A federal conviction can also result in forfeiture of the material, any traceable profits, and any property used to commit the offense.14U.S. Department of Justice. Citizens Guide to U.S. Federal Law on Obscenity15Office of the Law Revision Counsel. 18 USC 1467 – Criminal Forfeiture
A single act, such as distributing material depicting a minor over the internet from a California address, can violate both state and federal law at once. Federal prosecutors tend to take cases involving interstate distribution or larger operations; state prosecutors handle conduct confined within California. Nothing bars overlapping prosecution.