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- How federal law classifies misdemeanors
- “Petty offense” is not another name for every misdemeanor
- Maximum imprisonment and fines are ceilings, not predictions
- Charging and court procedure can differ by class
- Why the exact offense statute still controls
- A misdemeanor charge still deserves careful attention
- Sources
Key Facts
- Federal level: Under 18 U.S.C. § 3559, an ungraded federal offense is a misdemeanor when its authorized maximum imprisonment is one year or less but more than five days.
- Federal level: Class A misdemeanors carry more than six months but no more than one year; Class B carry more than 30 days but no more than six months; Class C carry more than five days but no more than 30 days.
- Federal level: A “petty offense” is a narrower statutory category that includes qualifying Class B or C misdemeanors and infractions, subject to the fine limits in 18 U.S.C. § 19.
- Federal level: Classification identifies default sentencing and procedural rules, but the statute defining the particular offense still controls its elements and authorized maximum imprisonment.
- Federal level: Federal misdemeanors can still authorize imprisonment and fines; “misdemeanor” does not mean consequence-free.
A federal misdemeanor is an offense against federal law whose authorized punishment places it below a felony but, except for an infraction, above the lowest federal offense category. The label is a sentencing classification. It does not identify one particular crime, prove guilt, or by itself reveal the sentence a court will impose.
This classification-focused question differs from the broader subject of a federal crime and from the more serious punishment ranges associated with a federal felony. The starting point is the maximum imprisonment Congress authorized for the specific offense.
How federal law classifies misdemeanors
Some federal criminal statutes expressly assign a letter grade. When the offense-defining statute does not, 18 U.S.C. § 3559 supplies the grade by looking to the maximum authorized term of imprisonment.
- Class A misdemeanor: one year or less, but more than six months.
- Class B misdemeanor: six months or less, but more than 30 days.
- Class C misdemeanor: 30 days or less, but more than five days.
- Infraction: five days or less, or no imprisonment authorized.
An offense punishable by more than one year is classified as a felony under the same statute. The dividing line uses the authorized maximum, not the sentence requested by a prosecutor or ultimately imposed by a judge.
Section 3559 also says the classification carries the incidents assigned to that letter designation while preserving the maximum imprisonment authorized by the law describing the offense. A reader therefore must check both the offense statute and the generally applicable classification rules.
“Petty offense” is not another name for every misdemeanor
Under 18 U.S.C. § 19, a petty offense means a Class B misdemeanor, a Class C misdemeanor, or an infraction for which the maximum fine does not exceed the applicable statutory ceiling. A Class A misdemeanor is not a petty offense under that definition.
The fine condition matters. For an individual, 18 U.S.C. § 3571 generally sets a maximum of $5,000 for a Class B or C misdemeanor that does not result in death and $5,000 for an infraction. The offense statute, gain-or-loss provision, and other statutory exceptions can affect the applicable maximum, so the label should not be assigned from imprisonment alone.
Petty-offense status matters because federal law and Rule 58 provide streamlined procedures for that subset. It does not erase the criminal nature of the case or guarantee that no incarceration is possible.
Maximum imprisonment and fines are ceilings, not predictions
Section 3581 states default authorized imprisonment ranges by class: up to one year for Class A, up to six months for Class B, up to 30 days for Class C, and up to five days for an infraction. Those ranges track the classification scheme, but the particular offense statute may authorize a lower maximum.
For an individual, § 3571 generally authorizes up to $100,000 for a Class A misdemeanor that does not result in death and up to $5,000 for a Class B or C misdemeanor that does not result in death. It also permits the greatest of certain alternatives, including an amount specified in the offense law and, in qualifying cases, an amount tied to pecuniary gain or loss.
These are statutory ceilings. The maximum does not itself determine the sentence imposed in a particular case.
Charging and court procedure can differ by class
Federal Rule of Criminal Procedure 7 allows an offense punishable by imprisonment for one year or less to be prosecuted by indictment or information. By contrast, an offense punishable by more than one year generally must be prosecuted by indictment unless the defendant waives indictment as the rule permits.
Rule 58 governs petty offenses and other misdemeanors. It adapts ordinary criminal procedure for misdemeanor cases and permits use of a citation or violation notice as the charging document for a petty offense. The rule also addresses initial appearances, pleas, sentencing, and appeals from a magistrate judge’s judgment.
Under 18 U.S.C. § 3401, a specially designated federal magistrate judge may try and sentence persons accused of federal misdemeanors. For a misdemeanor other than a petty offense, the magistrate judge must explain the right to trial, judgment, and sentencing before a district judge, and the defendant must expressly consent to proceed before the magistrate judge. The statute does not impose that consent requirement for a petty offense.
Why the exact offense statute still controls
Two federal charges can share the same misdemeanor class while having different elements, defenses, mandatory consequences, enforcement agencies, and sentencing considerations. Classification supplies a framework; it does not replace the text of the charged law.
This article addresses only federal offense classification under Title 18.
To identify a federal charge accurately, start with the citation in the complaint, information, indictment, citation, or violation notice. Then confirm the version of the offense statute applicable to the alleged conduct, its authorized maximum penalties, and whether §§ 3559 and 19 or Rule 58 change the classification or procedure.
A misdemeanor charge still deserves careful attention
The word “misdemeanor” describes a class, not the practical importance of the case.
At an initial appearance, Rule 58 requires the court to advise the defendant of the charge, possible penalties, specified rights, and any right to appointed counsel. Anyone facing a federal charge should rely on the filed charging document and current governing authorities, and obtain advice from qualified counsel about the particular case rather than assuming the class label predicts the outcome.
Sources
- 18 U.S.C. § 3559 — sentencing classification of offenses
- 18 U.S.C. § 19 — petty offense defined
- 18 U.S.C. § 3571 — sentence of fine
- 18 U.S.C. § 3581 — sentence of imprisonment
- Federal Rule of Criminal Procedure 58 — petty offenses and other misdemeanors
- 18 U.S.C. § 3401 — magistrate judge misdemeanor jurisdiction
- Federal Rule of Criminal Procedure 7 — indictment and information
