6.4 Statutory citations

Statutory citations give you a standardized way to point readers to the exact law you're referencing. Getting these right matters because a judge, attorney, or professor who can't verify your cited authority will question your entire argument.

This guide covers the structure of statutory citations, the different types of statutes you'll encounter, short form rules, electronic source citations, and the key differences between Bluebook and ALWD formats.

Structure of statutory citations

Every statutory citation follows a predictable pattern. Once you learn the building blocks, you can construct (or decode) a citation for virtually any statute.

Elements of statutory citation

A standard statutory citation contains these components:

• Title or chapter number identifies the broad subject area (e.g., Title 42 covers Public Health and Welfare)
• Section symbol (§) precedes the specific section number
• Year of the code edition or supplement appears in parentheses at the end
• Jurisdiction abbreviation tells the reader which code you're citing (e.g., U.S.C. for the United States Code)
• Publisher information is included only for unofficial code versions (e.g., West or LexisNexis)

Citation order and format

Here's the standard order for assembling a statutory citation:

1. Start with the title or chapter number
2. Add the jurisdiction abbreviation
3. Insert the section symbol (§) and the specific section number
4. Place the year of the code edition in parentheses

The general format looks like this: Title Jurisdiction § Section (Year)

For example: 42 U.S.C. § 1983 (2018)

When citing multiple consecutive sections, use the double section symbol (§§). Subsections and paragraphs follow the section number, separated by parentheses or periods depending on how the code structures its subdivisions.

Pinpoint citations for statutes

Pinpoint citations let you direct the reader to a specific subsection, paragraph, or clause within a statute. This is essential when a section is long and you're relying on particular language.

• Place the subsection designation right after the main section number: § 1.01(a)(1)
• Lowercase letters typically designate subsections, while numbers designate paragraphs
• Different levels of subdivision are separated by parentheses: § 302(a)(2)(B)

Types of statutes

Statutes exist at the federal, state, and local levels, and each has its own citation conventions. Knowing which source to cite and how to format it depends on the level of government.

Federal statutes

The United States Code (U.S.C.) is the official compilation of federal statutes, organized by subject into 54 titles. Always cite to the U.S.C. when possible.

Format: 26 U.S.C. § 61 (2018) (this cites the Internal Revenue Code section defining gross income)

Two major unofficial compilations also exist:

• United States Code Annotated (U.S.C.A.), published by West
• United States Code Service (U.S.C.S.), published by LexisNexis

These unofficial versions include helpful annotations like case summaries and legislative history, but you should cite to the official U.S.C. unless the statute is too recent to appear there. Very new federal legislation may need to be cited to the Statutes at Large until it's codified.

State statutes

Each state has its own statutory code with a unique citation format. The structure often resembles the U.S.C., but abbreviations and organization vary widely.

• California: Cal. Penal Code § 211 (West 2021)
• New York: N.Y. Gen. Bus. Law § 349 (McKinney 2021)

Some states organize by title and section number, others by named code and section. Always check the Bluebook's Table T1 (or the ALWD equivalent) for the correct format for each state.

Local ordinances

Municipal codes and county ordinances have their own citation formats. Include the name of the municipality or county, the code designation, and the section number.

Format: L.A., Cal., Mun. Code § 41.18(d) (2021)

Some localities use charter sections rather than ordinance numbers. Additional parenthetical information may be needed if the source isn't widely accessible.

Citing codified vs uncodified statutes

The distinction between codified and uncodified statutes affects which source you cite and how you format the citation.

Official vs unofficial codes

Official codes are published by the government and carry legal authority. The U.S.C. is the official federal code, and citations to it don't require publisher information.

Unofficial codes (U.S.C.A. and U.S.C.S.) are published by commercial entities and include annotations, cross-references, and other editorial material. When you cite an unofficial code, include the publisher in the parenthetical: 42 U.S.C.A. § 1983 (West 2021).

The general rule: cite to the official code unless you have a specific reason to use an unofficial version (such as needing the annotations or citing a provision not yet in the official code).

Session laws vs codified laws

Session laws are statutes as originally enacted by the legislature, published in chronological order. Codified laws reorganize those same statutes by subject matter into a structured code.

• Cite session laws when legislation is too recent to be codified
• Federal session law format: Pub. L. No. 116-260, 134 Stat. 1182 (2020)
• Once the statute appears in the official code, switch to the codified citation

Short form citations

After you've given the full citation for a statute, you can use short forms for subsequent references. This keeps your writing clean and avoids unnecessary repetition.

Id. for statutory citations

Use id. when referring to the immediately preceding citation.

• If you're citing the exact same section, "Id." stands alone
• If you're citing a different section of the same statute, add the new section: Id. § 102
• Don't use "id." if the preceding citation includes multiple authorities, since the reference would be ambiguous

Supra for statutes

Supra is generally not used for statutes. This is a common mistake. Instead, use a standard short form that drops the date parenthetical:

• Full citation: 42 U.S.C. § 1983 (2018)
• Short form: 42 U.S.C. § 1983

If there's been a significant gap since the last full citation (several pages, for instance), provide the full citation again so the reader doesn't have to hunt for it.

Electronic sources for statutes

Online databases are often the most practical way to access current statutory text, but citation rules still generally prefer print-format citations.

Online databases vs print sources

Westlaw, Lexis, and official government websites (like uscode.house.gov) are common electronic sources. The citation format for statutes found online generally follows the same structure as the print format. You only need to add a URL or database identifier when the source isn't widely available in print.

Some jurisdictions require parallel citations to both print and electronic sources, so check local rules.

Citing to electronic statutes

When you do need to reference the electronic source, include that information in the parenthetical:

• Westlaw example: 42 U.S.C. § 1983 (Westlaw through Pub. L. No. 117-80)
• Government website: include the full URL and the date you last accessed it

Consider your audience. A brief filed in court may need electronic source details if the court's local rules require them, while a law review article typically follows standard print citation conventions.

Special citation rules

Some legal authorities don't fit neatly into the standard statutory citation format. These require their own conventions.

Citing constitutional provisions

Constitutional citations use a distinct structure. No date is needed unless you're citing a superseded or historical version.

• Federal Constitution: U.S. Const. art. I, § 8, cl. 3 (the Commerce Clause)
• Amendments: U.S. Const. amend. XIV, § 1 (use "amend." instead of "art.")
• State constitutions: Cal. Const. art. I, § 7

Notice that constitutional citations don't include a year for provisions currently in force.

Treaties and international agreements

Treaty citations include the treaty name, the parties, the signing date, and the publication source.

• Format: Treaty of Friendship, U.S.-Mor., Sept. 16, 1836, 8 Stat. 484
• The official U.S. source is United States Treaties and Other International Agreements (U.S.T.)
• For treaties not published in U.S.T., use the United Nations Treaty Series (U.N.T.S.)

Model codes and uniform laws

Model codes and uniform laws are drafted by organizations like the American Law Institute (ALI) or the Uniform Law Commission as templates for state legislatures.

• Format: Model Penal Code § 2.02(2)(c) (Am. L. Inst. 1962)
• Always include the drafting organization and the year
• Once a state adopts a model or uniform law, cite to the state's enacted version, not the model code itself

Currency in statutory citations

The date in a statutory citation tells the reader which version of the code you're relying on. Getting this right is critical because statutes change over time.

Date of code vs effective date

The year in parentheses refers to the code edition, not necessarily when the provision took effect.

• 42 U.S.C. § 1983 (2018) means you're citing the 2018 edition of the U.S. Code
• If the effective date of a particular provision matters to your argument, add it in a separate parenthetical: 42 U.S.C. § 1983 (2018) (effective Jan. 1, 2019)

Pocket parts and supplements

Between full code editions, publishers issue pocket parts (inserts tucked into the back cover) and supplements containing updates. If the most current version of a statute appears in a supplement rather than the main volume, your citation needs to reflect that.

• Format: 17 U.S.C. § 106A (Supp. V 2020)
• Some jurisdictions require you to cite both the main volume and the supplement when relevant provisions appear in both

Parallel citations for statutes

Parallel citations reference the same statute in multiple publications. They're less common for statutes than for cases, but some situations call for them.

Multiple code versions

• Use parallel citations when required by court rules or when the unofficial version adds value (e.g., annotations relevant to your argument)
• List the official source first, followed by the unofficial source, separated by a comma
• Format: 42 U.S.C. § 1983 (2018), 42 U.S.C.A. § 1983 (West Supp. 2021)

Official vs commercial publications

Official publications carry the force of law. Commercial publications add editorial features like annotations and cross-references. The default rule is to cite the official publication. However, some states designate certain commercial publications as their official code (for example, West publishes several states' official codes). Check the Bluebook's Table T1 to confirm which publication is official for your jurisdiction.

Explanatory parentheticals

Parentheticals after a statutory citation give the reader additional context without cluttering the main text.

Amendments and historical notes

• Note recent amendments: 42 U.S.C. § 1983 (2018) (amended 2020)
• Indicate original enactment: 42 U.S.C. § 1983 (2018) (originally enacted as Act of Apr. 20, 1871)
• These parentheticals are especially useful when the legislative history or timing of an amendment is relevant to your analysis

Cross-references in statutes

Statutes frequently reference other sections. Parentheticals can clarify these relationships for the reader.

• Format: 42 U.S.C. § 1983 (2018) (referencing § 1981 remedies)
• Use explanatory language to highlight connections that matter to your argument
• This helps readers understand how the cited provision fits within the broader statutory scheme

Bluebook vs ALWD citation formats

The Bluebook and the ALWD Guide to Legal Citation are the two dominant citation systems. Most law schools teach one or both, and most courts expect Bluebook format (sometimes modified by local rules).

Key differences for statutes

These differences are small but noticeable. Know which system your professor or court requires and be consistent throughout your document.

Jurisdiction-specific citation rules

Some jurisdictions have their own citation manuals that override general Bluebook or ALWD guidelines. For example:

• The California Style Manual has specific rules for citing California statutes
• Federal courts generally follow the Bluebook, but individual courts may have local rules that modify certain conventions

Always check the local rules of the court where you're filing. A citation that's technically correct under the Bluebook might still be wrong if the court's local rules require a different format.