California Romeo and Juliet Law: Age of Consent, Close-in-Age Rules, and Penalties

Overview

California occupies an unusual position in this area, and the usual one-line summary — "age of consent 18, no Romeo and Juliet law" — is accurate but tells you almost nothing useful.

The state does set its threshold at 18, one of the highest in the country. And it genuinely has no exemption statute of the kind Texas, Florida, or Alabama use. Sexual activity with anyone under 18 is a crime in California regardless of how close in age the parties are. Two seventeen-year-olds in a relationship are, on the face of the Penal Code, each committing an offense against the other.

But California substitutes something for the exemption it lacks: a graded structure that pushes close-in-age cases down to the misdemeanor level, combined with two features most states don't offer at all — a genuine mistake-of-age defense with a sixty-year pedigree, and a registration scheme where the most common charge in this area carries no automatic registration requirement.

The result is a system that looks harsh on paper and frequently operates more leniently than its neighbors in practice — with some sharp exceptions that catch people badly.

1. Does California Have a Romeo and Juliet Law?

No, not in the technical sense — there is no provision that makes the conduct lawful based on the age gap. What California has instead is Penal Code § 261.5, which grades the offense of unlawful sexual intercourse by the distance between the parties. Under subdivision (b), where the minor is not more than three years older or younger than the other person, the offense is a misdemeanor, full stop — it cannot be charged as a felony. Under subdivision (c), where the minor is more than three years younger, the offense is a wobbler: chargeable as either a misdemeanor or a felony at the prosecutor's discretion, and reducible by the court. Under subdivision (d), where the actor is 21 or older and the minor is under 16, the offense is also a wobbler, but with an elevated felony sentencing triad. There is also a civil penalty scheme under subdivision (e), scaling with the age gap and reaching substantially higher where an adult over 21 is involved with a minor under 16. Worth correcting a common misreading: subdivision (c) turns on the gap, not on whether the minor was under 16 — a twenty-two-year-old with a seventeen-year-old and a twenty-two-year-old with a fifteen-year-old both sit in (c). The under-16 line only becomes independently significant under (d), where the older person is 21 or over.

2. Age of Consent in California

Eighteen. There is no lower threshold, no sliding scale, and no age at which a minor acquires the capacity to consent to sexual activity with an adult. California is joined at 18 by a minority of states including Arizona, Florida, Oregon, Delaware, and Tennessee — which means conduct that's lawful in Nevada at 16 remains criminal in California, since the governing law is that of the place where the conduct occurred. On marriage: California did not abolish minor marriage. AB 273 (2018) added judicial review, interviews, and court oversight to any marriage involving a person under 18, but the option survives. Section 261.5 is written to exclude a spouse from its reach, which means marital status is a genuine element rather than an afterthought — though the practical availability of that route is now narrow.

3. Close-in-Age Exception Explained

This is the single most important limit on California's grading structure, and it's easy to miss. Section 261.5 addresses unlawful sexual intercourse only. Other sexual acts are prosecuted under different statutes with different structures — § 287 for oral copulation, § 289 for sexual penetration, and § 288 for lewd or lascivious acts — and none of them replicate § 261.5(b)'s automatic misdemeanor cap. A three-year gap does not guarantee misdemeanor treatment outside the intercourse statute, so a couple who would be comfortably inside the (b) tier for one form of conduct may face wobbler exposure for another, on identical facts and identical ages. Reading § 261.5 as a general rule about close-in-age relationships in California is reading it too broadly.

4. Legal Age Gap Rules

Below 14, the analysis changes completely. Penal Code § 288 covers lewd or lascivious acts with a child under 14 and carries a felony triad of three, six, or eight years per count, mandatory lifetime registration, and no close-in-age consideration of any kind. There is also a middle provision worth knowing: § 288(c)(1) reaches lewd acts with a child of 14 or 15 where the other person is at least ten years older — a separate exposure route running alongside § 261.5 that applies to conduct which might otherwise be analyzed only under the intercourse statute. Taken together, the age-gap thresholds under California law run: within 3 years of the minor is a misdemeanor only under § 261.5(b); more than 3 years older with a minor 16 or 17, or with a minor under 16, is a wobbler under § 261.5(c); 21 or older with a minor under 16 is a wobbler with an elevated felony triad under § 261.5(d); and 10 or more years older than a minor 14–15, or any conduct with a minor under 14, falls under § 288 with no close-in-age consideration at all. There is no gap that fully decriminalizes conduct with a minor under 18.

Mistake of Age: California's Hernandez Defense

Most states treat statutory offenses as strict liability on age. California does not, and this is a genuine outlier feature.

Since the California Supreme Court's 1964 decision in People v. Hernandez, a defendant charged under § 261.5 may assert a good-faith, reasonable belief that the other person was 18 or older. The belief must be both sincerely held and objectively reasonable — a defendant who ignored obvious indications of age won't succeed by claiming subjective conviction.

The limit is equally important. In People v. Olsen (1984), the court held that no mistake-of-age defense is available under § 288 for victims under 14. Below that line, belief is irrelevant no matter how reasonable.

So California offers a defense that Alabama and most other states refuse — but only above the § 288 threshold, and only where the belief holds up under scrutiny.

A caution that applies with particular force here: the existence of this defense is not a reason to explain your beliefs to a detective. Hernandez arguments are built from evidence — messages, mutual acquaintances, venue, appearance, what the person actually represented — and assembled by counsel. Statements given informally during an investigation routinely become the prosecution's material instead.

5. What Is Not Protected?

Several categories of conduct fall entirely outside § 261.5's protection, and these are the routes by which otherwise-lawful relationships most often produce charges.

• Explicit images — the largest real-world exposure. Penal Code § 311.11 and related provisions use 18 as the threshold with no close-in-age accommodation. Two seventeen-year-olds whose physical relationship would sit in the § 261.5(b) misdemeanor tier can face felony child pornography exposure for photographing it or exchanging images. California's juvenile system frequently diverts these cases, but diversion is a discretionary outcome, not a legal protection.
• Force, threat, or incapacity. Prosecuted as forcible offenses independent of age and independent of any grading tier.
• Positions of authority. Teachers, coaches, clergy, and others in supervisory roles face separate and aggravated exposure regardless of the age gap.
• Federal enticement law. This one is underappreciated. 18 U.S.C. § 2422(b) criminalizes using any facility of interstate commerce — which includes a phone or the internet — to persuade or entice a minor to engage in sexual activity, and carries a ten-year mandatory minimum. Text messages between two people in the same California city can satisfy the interstate element. Federal charges are not softened by California's grading structure.
• Conduct outside California. The law of the place where the conduct occurred governs. Nevada, Oregon, and Arizona all differ from California and from each other.

6. Examples

7. Possible Penalties

Penalties under California's statutory scheme scale with the age gap and the minor's age. Because § 261.5 includes 'wobbler' offenses, the same conduct can be charged as either a misdemeanor or a felony depending on prosecutorial discretion and the defendant's criminal history. One correction to a widespread error: felony sentences under § 261.5 are generally served under Penal Code § 1170(h) — meaning county jail rather than state prison — following California's 2011 realignment. Sources describing § 261.5 felonies as carrying 'state prison' terms are usually working from pre-realignment material.

8. Sex Offender Registration Risk

California moved to a three-tier system under SB 384, effective 2021: Tier One with a minimum ten-year term, Tier Two with a minimum twenty years, and Tier Three for life. Tier One and Two registrants may petition for termination after the minimum period, subject to eligibility requirements and prosecutorial objection. The key point for this topic: § 261.5 is not on the list of offenses requiring mandatory registration — neither a misdemeanor nor a felony conviction under that section triggers automatic registration. Registration can still be imposed through § 290.006, which allows a court to order it where it finds the offense was committed as a result of sexual compulsion or for purposes of sexual gratification, and states reasons on the record. That is a judicial finding, not an automatic consequence — which makes it something a defense attorney can argue against, and one of the more consequential things counsel does in these cases. Section 288 convictions are a different matter entirely: registration is mandatory and lifetime.

Statutes of Limitation

California has extended limitation periods substantially for sexual offenses against minors, in some circumstances permitting prosecution until well into the victim's adulthood, and has eliminated the period entirely for certain serious offenses. Which rule applies depends on the offense charged and when the conduct occurred, and California has amended these provisions more than once. This is a question for current research rather than assumption.

9. Official Statute Sources

Primary California statutes and official government resources cited in this guide. Look each citation up on your state legislature's official website for the current text:

• California Penal Code § 261.5 — Unlawful sexual intercourse
  Cal. Penal Code § 261.5
• California Penal Code § 288 — Lewd or lascivious acts with a child
  Cal. Penal Code § 288
• California Penal Code §§ 287, 289 — Oral copulation and sexual penetration
  Cal. Penal Code §§ 287, 289
• California Penal Code § 311.11 — Possession of matter depicting a minor
  Cal. Penal Code § 311.11
• California SB 384 — Tiered Sex Offender Registration
  Cal. Penal Code §§ 290–290.024
• People v. Hernandez (1964) — mistake-of-age defense
  61 Cal.2d 529
• People v. Olsen (1984) — limits on the mistake-of-age defense
  36 Cal.3d 638
• U.S. Department of Justice — Citizen's Guide to U.S. Federal Law on Child Sexual Abuse
  U.S. Dept. of Justice, Criminal Division
• California Courts — Self-Help: Criminal Cases
  Judicial Branch of California

10. When to Talk to a Lawyer

Before speaking to anyone else — detectives, school administrators, or CPS investigators, including in conversations framed as routine. California cases turn on discretionary decisions to an unusual degree: whether a wobbler is charged as a felony or a misdemeanor, whether the court later reduces it, whether a § 290.006 registration finding is made, and whether diversion is offered are all decisions that counsel can influence — and all of them are shaped by what happens early. Preserve documentation of dates, ages, and communications. Do not delete messages or images; deletion can generate separate charges and rarely helps. Ask specifically about registration exposure under § 290.006 and about wobbler reduction under § 17(b), not just about the sentence.