What this charge covers
Federal law makes it a serious felony to move a young person across state or national lines for sexual exploitation. The charge most often called transportation of a minor is section 2423(a) of Title 18 of the United States Code. It sits in Chapter 117, the chapter on transportation for illegal sexual activity and related crimes, alongside the enticement offense in section 2422 and the travel offenses in the later subsections of section 2423 itself.
To convict under section 2423(a), the government must prove each of the following beyond a reasonable doubt. First, the defendant knowingly transported an individual. Second, that individual had not attained the age of 18 years. Third, the transportation was in interstate or foreign commerce, or in a commonwealth, territory, or possession of the United States. Fourth, the defendant acted with intent that the individual engage in prostitution or in any sexual activity for which any person can be charged with a criminal offense.
Each of those elements matters. The government must prove real movement across a state or national line, not just a plan to travel. It must prove the age of the person moved. And it must prove the intent that accompanied the trip. A drive across a state line for an innocent reason is not this offense, even if the passengers include a minor. The question is what the defendant intended at the time of the transportation. Cases of this kind are often investigated by the FBI, and the investigation page on FBI investigations describes how that process usually begins. The broader hub page on Federal Sex Crimes places this charge among the other offenses in Chapter 117 and nearby chapters.
The exact words of the statute
Because every word of a criminal statute can matter at trial and at sentencing, it helps to read what Congress actually wrote. Subsection (a), the transportation provision, reads in full:
"(a) Transportation With Intent To Engage in Criminal Sexual Activity.-A person who knowingly transports an individual who has not attained the age of 18 years in interstate or foreign commerce, or in any commonwealth, territory or possession of the United States, with intent that the individual engage in prostitution, or in any sexual activity for which any person can be charged with a criminal offense, shall be fined under this title and imprisoned not less than 10 years or for life."
Notice the structure. The verbs are about movement: transports. The mental state attaches to the purpose of the movement: with intent that the individual engage in the listed conduct. And the penalty clause sets both a floor and a ceiling: not less than 10 years or for life. There is no separate attempt clause inside subsection (a). Congress removed the words "or attempts to do so" from this subsection years ago and instead placed attempt and conspiracy in subsection (f), discussed below, which carries the same punishment as a completed violation.
The other subsections: travel, foreign conduct, organizations, and help
Section 2423 contains more than transportation. The subsections after (a) punish related patterns with a maximum of 30 years and no mandatory minimum. Understanding the full map matters because the facts of a trip can fit one subsection and not another, and because the government sometimes charges several of them together.
Subsection (b) punishes travel rather than transportation. Its text provides:
"(b) Travel With Intent To Engage in Illicit Sexual Conduct.-A person who travels in interstate commerce or travels into the United States, or a United States citizen or an alien admitted for permanent residence in the United States who travels in foreign commerce, with intent to engage in any illicit sexual conduct with another person shall be fined under this title or imprisoned not more than 30 years, or both."
The difference between (a) and (b) is practical and important. Under (a), the defendant moves the minor. Under (b), the defendant is the traveler and moves with intent to engage in the conduct. A case built on driving a minor across a state line points toward (a). A case built on the defendant buying a ticket and traveling to meet someone points toward (b). Congress amended this language in 2023 to replace an older purpose test with the current intent test, and it added a rule of construction, subsection (h), providing that intent means any such intention at the time of the transportation or travel, not only a primary or dominant purpose.
Subsection (c) reaches conduct abroad. It provides:
"(c) Engaging in Illicit Sexual Conduct in Foreign Places.-Any United States citizen or alien admitted for permanent residence who travels in foreign commerce or resides, either temporarily or permanently, in a foreign country, and engages in any illicit sexual conduct with another person shall be fined under this title or imprisoned not more than 30 years, or both."
Subsection (d) covers illicit sexual conduct connected with an organization that affects interstate or foreign commerce, where the person acts as an officer, director, employee, or agent and uses the mails or commerce through that connection. It carries the same maximum of 30 years. Subsection (e) punishes ancillary offenses and provides:
"(e) Ancillary Offenses.-Whoever, for the purpose of commercial advantage or private financial gain, arranges, induces, procures, or facilitates the travel of a person knowing that such a person is traveling in interstate commerce or foreign commerce with intent to engage in any illicit sexual conduct shall be fined under this title, imprisoned not more than 30 years, or both."
Subsection (f) makes attempt and conspiracy equivalent to the completed offense:
"(f) Attempt and Conspiracy.-Whoever attempts or conspires to violate subsection (a), (b), (c), (d), or (e) shall be punishable in the same manner as a completed violation of that subsection."
That equivalence is one of the harshest features of this statute. An interrupted trip, a cancelled ticket, or a plan stopped at the border can carry the same punishment as a completed one. The absence of completed sexual activity is not by itself a defense. The fight shifts to what the travel, messages, tickets, and statements prove about intent.
Subsection (g) defines the term "illicit sexual conduct" used in subsections (b) through (e). It has three prongs:
"(1) a sexual act (as defined in section 2246) with a person under 18 years of age that would be in violation of chapter 109A if the sexual act occurred in the special maritime and territorial jurisdiction of the United States;"
"(2) any commercial sex act (as defined in section 1591) with a person under 18 years of age; or"
"(3) production of child pornography (as defined in section 2256(8))."
Subsection (i) then provides a defense, but only for cases based on the second prong, the commercial sex act category:
"(i) Defense.-In a prosecution under this section based on illicit sexual conduct as defined in subsection (g)(2), it is a defense, which the defendant must establish by clear and convincing evidence, that the defendant reasonably believed that the person with whom the defendant engaged in the commercial sex act had attained the age of 18 years."
Two limits in that defense deserve emphasis. First, the defendant carries the burden and must meet the clear and convincing standard, which is higher than the ordinary civil standard. Second, the defense reaches only the commercial sex act prong. It does not apply to the other two prongs or to a prosecution under subsection (a) for transportation with intent tied to prostitution or criminal sexual activity generally.
Penalties under § 2423(a)
The penalties shown here are statutory maximums and minimums written by Congress. They are not predictions about any particular case. The facts, the guideline calculation, and the judge all change the outcome.
A conviction under section 2423(a) carries a mandatory minimum prison term of 10 years and a maximum of life in prison. The word mandatory means the judge cannot go below 10 years on that count except in narrow circumstances defined by law. The current 10-year floor dates to a 2006 amendment that replaced an earlier range of 5 to 30 years.
A conviction under subsection (b), (c), (d), or (e) carries up to 30 years in prison, a fine under Title 18, or both, with no mandatory minimum. Attempt or conspiracy under subsection (f) carries the same punishment as the completed violation of whichever subsection is charged.
All of these offenses also allow a fine under Title 18. And a prison term for an offense under section 2423 is followed by supervised release. Under section 3583(k), "the authorized term of supervised release for any offense under section 1201 involving a minor victim, and for any offense under section 1591, 1594(c), 2241, 2242, 2243, 2244, 2245, 2250, 2251, 2251A, 2252, 2252A, 2260, 2421, 2422, 2423, or 2425, is any term of years not less than 5, or life." Supervised release means years of court supervision after prison, with conditions that commonly restrict internet use, contact with minors, and where a person may live or work. Violating those conditions can send a person back to prison.
The sentencing guideline for a § 2423(a) conviction
A conviction under section 2423(a) through (d) is sentenced under section 2G1.3 of the United States Sentencing Guidelines. The Statutory Index in Appendix A of the 2025 Guidelines Manual lists section 2423(a) through (d) with section 2G1.3, and the guideline itself names transportation of minors in its title. Adult transportation cases fall under section 2G1.1 instead, which is one reason the age of the person involved changes the whole case.
Section 2G1.3 sets the base offense level by the statute of conviction:
"(3) 28, if the defendant was convicted under 18 U.S.C. § 2422(b) or § 2423(a); or"
Any other case under the guideline starts lower, at "(4) 24, otherwise." Level 28 is already high. Before any enhancement, level 28 with no criminal history produces an advisory range of 78 to 97 months, but the 10-year mandatory minimum raises the floor to 120 months. The enhancements then add from there.
The specific offense characteristics in subsection (b) of section 2G1.3 are where the range climbs. The main ones are:
Custody or care. "(A) the defendant was a parent, relative, or legal guardian of the minor," and the same 2-level increase applies where the minor was otherwise in the defendant's custody, care, or supervisory control. The commentary gives this broad application, explaining that teachers, day care providers, babysitters, and other temporary caretakers can fall within it depending on the actual relationship rather than the legal label.
Misrepresentation or undue influence. There is a 2-level increase where "the offense involved the knowing misrepresentation" of identity "to persuade, induce, entice, coerce, or facilitate the travel of, a minor to engage in prohibited sexual conduct," and the same increase applies where a participant otherwise unduly influenced the minor. The commentary adds two points counsel watches closely. Lying about name, age, occupation, gender, or status to win trust is the classic example, but a bare screen name without that purpose is not enough. And where a participant is at least 10 years older than the minor, "there shall be a rebuttable presumption that subsection (b)(2)(B) applies," meaning the age gap alone can trigger the increase unless rebutted.
Computer use. Where the offense involved the use of a computer or an interactive computer service "to (A) persuade, induce, entice, coerce, or facilitate the travel of, the minor to engage in prohibited sexual conduct," the level rises by 2. Because trips are so often arranged by phone or over the internet, this enhancement applies in a large share of transportation cases. The commentary limits it to communication directly with the minor or with a person having custody or control of the minor, so using a computer only to buy airline tickets does not count.
Sexual contact. "(4) (Apply the greater)" then provides a 2-level increase where "the offense involved the commission of a sex act or sexual contact," with a parallel clause for commercial sex acts. Completed sexual conduct therefore adds punishment on top of the transportation itself.
Young age. "If (A) subsection (a)(3) or (a)(4) applies; and (B) the offense involved a minor who had not attained the age of 12 years, increase by 8 levels." This is the single largest enhancement in the guideline and by itself moves the range by several years.
Beyond these, section 2G1.3 contains cross references that can replace the whole calculation with a higher one. If the offense involved producing images of the conduct, section 2G2.1 can apply. If the conduct involved force of the kind described in sections 2241 or 2242, section 2A3.1 can apply, and that section applies regardless of consent where interstate travel with intent involved a child under 12. If a minor was killed, section 2A1.1 can apply. Each cross reference applies only when it produces a higher level, expressed in the guideline as "if the resulting offense level is greater than that determined above."
Two more guideline rules deserve attention. First, the guideline defines a minor as "an individual who had not attained the age of 18 years," and that definition also covers "an undercover law enforcement officer who represented to a participant that the officer had not attained the age of 18 years." Sting operations in which no real minor exists are therefore sentenced the same way. Second, the special instruction provides that "If the offense involved more than one minor, Chapter Three, Part D (Multiple Counts) shall be applied as if the persuasion, enticement, coercion, travel, or transportation to engage in a commercial sex act or prohibited sexual conduct of each victim had been contained in a separate count of conviction." Each victim adds punishment rather than grouping together.
Why the numbers run high, and what courts actually impose
The guideline in this area stacks. A single trip can trigger the custody enhancement, the misrepresentation or undue influence enhancement, the computer enhancement, the sexual contact enhancement, and the age enhancement at the same time. Starting from level 28, adding for example 2 plus 2 plus 2 plus 8 reaches level 42, where the advisory range even for a first offender is 360 months to life. The specification for this site warns about exactly this pattern. The guidelines for sex offenses against minors pile enhancements so steeply that calculated ranges often reach or approach the statutory maximum.
But the calculated range is only the starting point. Judges must consider it alongside the other sentencing factors in section 3553(a), and either side can argue for a sentence above or below it. The United States Sentencing Commission tracks what happens in practice. In its fiscal year 2025 Quick Facts on sexual abuse offenses, a group that includes cases sentenced under section 2G1.3 as "Travel to Engage in Prohibited Sexual Conduct with a Minor (§2G1.3)," the Commission reports that "52% of sentences for sexual abuse were under the Guidelines Manual." Within the variance cases, "44% were downward variances." For the travel subgroup the Commission reports that "The average sentence for individuals convicted of travel to engage in prohibited sexual conduct with a minor was 162 months," adding that "76% of these individuals were convicted of an offense carrying a mandatory minimum penalty; their average sentence was 186 months. The average sentence without a mandatory minimum was 90 months." The page on Federal Sentencing explains how the advisory range, the mandatory minimum, and the section 3553(a) factors fit together.
None of this predicts any individual sentence. Averages describe thousands of past cases with different facts, different judges, and different districts. They do show, honestly, that the guideline number and the final sentence are often far apart in both directions.
Defenses and issues a defense lawyer examines
Every case turns on its own facts, and no list of defenses fits all of them. What follows are the issues counsel examines in a transportation case, shaped by the elements and the guideline above.
Knowledge and movement. The government must prove the defendant knowingly transported the minor across the relevant line. Counsel tests the travel evidence itself: who drove, who crossed which border, what tickets and records show, and whether the defendant knew the passenger's age and destination. Border crossings, toll records, phone location data, and surveillance each get examined rather than assumed.
Intent at the time of travel. The statute asks what the defendant intended when the transportation happened, and the rule of construction confirms that any such intention at that time counts. Counsel examines whether the trip had an innocent purpose, when any sexual purpose formed, and whether messages and conduct before and during the trip prove intent or merely association. A lawful road trip that later took a different turn presents a different case than a trip planned around exploitation from the start.
Age and the narrow statutory defense. The government must prove the person was under 18. Where the parties discussed age, how that discussion unfolded is often central. The reasonable belief defense in subsection (i) helps only in cases based on a commercial sex act, and the defendant must prove it by clear and convincing evidence. Outside that category, counsel tests what the government can prove about who knew what and when, rather than relying on a defense the statute does not provide.
Which subsection fits. As the comparison section shows, the line between transporting a minor, traveling oneself, enticing through messages, and helping someone else's travel turns on who moved, who was persuaded, and what the records prove. Counsel tests whether the facts fit the charged subsection or a different one with a lower penalty, and whether multiple counts punish the same conduct twice.
Attempt and interruption. Because attempt carries the same punishment as a completed violation, a stopped or abandoned trip is not by itself a defense. The question becomes what the tickets, messages, and acts prove about intent. Preparation that looks ambiguous can cut against the charge, while detailed planning can support it.
How the contact began. Some cases begin with an undercover officer rather than a real minor. The guideline definition quoted above means a fictitious minor does not automatically defeat sentencing under section 2G1.3. But the circumstances of first contact still matter enormously. Counsel examines who started the conversation, whether the idea of travel came from the defendant or the other side, and whether the record supports an entrapment claim or simply undermines proof of predisposition and intent. These arguments depend entirely on the facts and on the law of the circuit where the case is charged.
Which enhancements fit. At sentencing, each enhancement must be proved on the facts. The custody enhancement, the misrepresentation and undue influence enhancement with its age gap presumption, the computer enhancement, the sexual contact enhancement, and the under-12 enhancement each have defined triggers discussed above. Counsel challenges each one that the record does not support, disputes the cross references when they do not fit, and argues the multiple victim rule only where it truly applies. Because the enhancements stack so steeply, winning or losing one of them can move the range by years.
The variance case. Given how often courts sentence below the range in this category, counsel builds the record for a below range sentence from the start. That record can include the full context of the offense, personal history, treatment efforts, the absence of prior record, and expert evaluation where appropriate. The guideline calculation opens the discussion. It does not end it.
If you are under investigation
People often learn about a transportation investigation through a search, an arrest, or a message from an agent asking to talk. Three practical points come first. Do not contact the minor or anyone connected to the case, since new messages can become new evidence. Do not agree to be interviewed without counsel, since statements to federal agents are difficult to undo. And preserve everything, including phones, vehicles, tickets, and accounts, while letting counsel decide what to review and how to respond. Federal agents sometimes approach through a target letter or a grand jury process, and those pages explain what each step means.
A final note on penalties
This page states maximums, minimums, and guideline mechanics as Congress and the Commission wrote them. It does not predict what any judge will do in any case. The facts change everything, from whether the government can prove each element, to which enhancements apply, to whether the sentence falls inside, above, or below the calculated range. Anyone facing this charge, or anyone whose family member is, should speak with a federal criminal defense lawyer promptly about the specific facts.