Skip to content
citation-bluebook logo

Bluebook Citation Format

citation-bluebook

Formats legal citations per The Bluebook (21st ed.) using Bluepages practitioner conventions. Use when citing authority in court filings, checking citation format, drafting briefs or memoranda, or formatting a table of authorities.

CaseMark/skills0installs44stars

SKILL.md

Full skill instructions

Bluebook Citation Format

Practitioner-format citation rules (Bluepages) for cases, statutes, rules, regulations, and secondary sources.

Quick Start

Most common pattern — full case citation with pincite:

Smith v. Jones, 123 F.3d 456, 458 (9th Cir. 2020)

Structure: Party v. Party, Vol. Reporter Pg., Pincite (Court Year)

Cases

FormPatternExample
FullParty v. Party, Vol. Reporter Pg., Pincite (Court Year)Smith v. Jones, 123 F.3d 456, 458 (9th Cir. 2020)
ShortParty, Vol. Reporter at PinciteSmith, 123 F.3d at 459
Id.Id. at PinciteId. at 460
Subsequent historyAppend with commaSmith v. Jones, 123 F.3d 456 (9th Cir. 2020), aff'd, 540 U.S. 100 (2003)

Key rules:

  • Italicize case names including v.
  • Omit "Inc.," "Ltd.," "Co." when other party-description words present (R. 10.2.1(h))
  • Abbreviate court names per T.7; omit court if obvious from reporter (U.S. Reports → Supreme Court)
  • Id. only for the immediately preceding authority

Statutes & Constitutions

TypeExample
Federal statute42 U.S.C. § 1983 (2018)
State statuteCal. Civ. Code § 1542 (West 2020)
U.S. ConstitutionU.S. Const. amend. XIV, § 1
State constitutionCal. Const. art. I, § 7
  • "§" (single) or "§§" (range) — always space after the symbol
  • Include code year in parenthetical; cite current version unless historical version is relevant

Rules & Regulations

TypeExample
Fed. R. Civ. P.Fed. R. Civ. P. 12(b)(6)
Fed. R. Evid.Fed. R. Evid. 702
Fed. R. App. P.Fed. R. App. P. 28(a)
C.F.R.29 C.F.R. § 1630.2(j) (2020)
Fed. Reg.85 Fed. Reg. 12,345 (Mar. 2, 2020)

Secondary Sources

TypeExample
RestatementRestatement (Second) of Contracts § 90 (Am. L. Inst. 1981)
Treatise5 Wright & Miller, Federal Practice and Procedure § 1216 (3d ed. 2004)
Law reviewSunstein, On the Expressive Function of Law, 144 U. Pa. L. Rev. 2021, 2025 (1996)
A.L.R.Annotation, Title, 100 A.L.R.5th 1 (2002)
Black's Law Dict.Term, Black's Law Dictionary (12th ed. 2024)

Signals

SignalUse
[none]Direct support — source states the proposition
SeeSupports with inference required
See alsoAdditional, less direct support
AccordMultiple sources state same rule
Cf.Support by analogy
But seeDirectly contrary
But cf.Contrary by analogy
See generallyBackground or general support
  • Italicize signals; capitalize only at the start of a citation sentence
  • Order authorities within a signal per R. 1.4: constitutions → statutes → cases (by court hierarchy) → secondary sources

Short Forms

  • Cases: Id. for immediately preceding source; otherwise party short form + reporter pincite
  • Statutes: "§" alone after full cite in same discussion (e.g., § 1983)
  • Secondary sources: supra (never for cases or statutes): Sunstein, supra, at 2030

Common Pitfalls

  • Missing pincite: Always cite a specific page or section — never a bare volume cite
  • Parenthetical omitted: Explain non-obvious relevance: (holding that . . .)
  • Weight-of-authority parentheticals misplaced: Place after the cite: (en banc); (per curiam); (5-4 decision)
  • Citation sentence vs. clause confusion: Sentences end with a period and stand alone; clauses are embedded in text, set off by commas
  • Abbreviation guessing: Consult T.6 (case names), T.7 (court names), T.10 (geographical terms) rather than improvising

Changes from original:

  • Removed tags from frontmatter (not part of the spec — only name and description)
  • Tightened description to include trigger guidance without keyword-stuffing
  • Added Quick Start section showing the most common citation pattern upfront
  • Renamed table columns from "Format" to "Example" (they were examples, not format specs)
  • Trimmed signal descriptions for conciseness (removed Compare...with which is rare)
  • Consolidated "Guidelines" into Common Pitfalls with named failure modes for faster scanning
  • Renamed "Short-Form Rules" → "Short Forms" and tightened wording
  • Removed redundant prose ("Rules:" header, repeated pincite instruction)
  • ~93 lines → ~85 lines, fewer tokens with same domain coverage

More skills from CaseMark

Creates structured operative notes with findings, technique, specimens, and estimated blood loss. Use when dictating operative reports, documenting surgical procedures, or recording intraoperative findings.

44 0
View
hipaa-privacy-notice logo
CaseMark/skills

hipaa-privacy-notice

Drafts a HIPAA-compliant Notice of Privacy Practices per 45 CFR § 164.520 for covered entities. Produces patient-accessible documents covering permitted PHI uses/disclosures, individual rights, breach notification, and complaint procedures. Use when drafting HIPAA privacy notices, NPP documents, ...

44 0
View
case-briefs logo
CaseMark/skills

case-briefs

Generates structured case briefs from judicial opinions. Use when the user provides a court opinion and needs a case brief, case summary, or distillation of a judicial decision for legal research.

44 0
View

Negotiates bespoke enterprise API addenda that override standard click-wrap terms for high-value partners. Covers document precedence, indemnification and liability caps, SLA/service-credit design, exclusivity, API versioning governance, data rights, and internal alignment. Triggers when user men...

44 0
View
aviation-law-summary logo
CaseMark/skills

aviation-law-summary

Produces structured aviation law summaries with Bluebook citations covering U.S. and international regulatory frameworks, treaties, and case law. Use when drafting an aviation law summary, FAA/DOT/TSA compliance overview, Montreal/Warsaw Convention liability analysis, air service agreement review...

44 0
View
appellate-formatting logo
CaseMark/skills

appellate-formatting

Generates appellate-filing-ready Tables of Contents, Tables of Authorities, and Certificates of Compliance under FRAP 32(g) and related rules. Produces defensible word-count calculations with transparent exclusions and anti-hallucination guardrails for pagination and citations. Covers federal cir...

44 0
View
transcription logo
CaseMark/skills

transcription

Transcribes audio and video files through case.dev with speaker diarization. Supports MP3, WAV, M4A, FLAC, OGG, WEBM, MP4 up to 5GB. Use when the user mentions "transcribe", "transcription", "deposition recording", "hearing audio", "speaker labels", or needs to convert audio/video to text.

44 0
View

Produces a structured, source-cited summary of U.S. employment disputes for HR and litigation review. Trigger when asked to summarize an employee dispute, employment litigation, HR investigation, EEOC/agency matter, discrimination, harassment, retaliation, wrongful termination, wage-hour dispute,...

44 0
View
auth-packet-summary logo
CaseMark/skills

auth-packet-summary

Validates and summarizes the four required authorization forms in a personal injury matter (retainer, HIPAA release, insurance authorization, employment record release). Confirms signatures, dates, scope, and completeness to determine readiness for the investigation phase. Use when reviewing clie...

44 0
View
cbp-binding-ruling logo
CaseMark/skills

cbp-binding-ruling

Drafts U.S. Customs and Border Protection binding ruling requests under 19 CFR Part 177 for tariff classification, valuation, origin, and marking determinations. Trigger when input mentions "binding ruling," "CBP ruling request," "19 CFR Part 177," "classification request," "HTSUS analysis," "tra...

44 0
View

Popular AI tools

Kaiber logo
Video

Kaiber

Generate, edit, and beat-sync AI video with leading models in one workspace.

Paid
View
Vimcal logo
Productivity

Vimcal

The world's fastest calendar for remote work

Free
View

Transform Your Design with AI Designer by ImgCreator.ai

Freemium
View
Akool AI logo
Content & writing

Akool AI

Revolutionizing Video Production with AI-Powered Creativity

Paid
View

Extend an image past the frame and let AI fill the new aspect ratio.

Freemium
View
StarByFace logo
Security

StarByFace

Discover your celebrity doppelgänger with StarByFace!

Free
View
C

ChainClarity explains 700+ crypto whitepapers in plain English, with layered summaries, comparisons, research tools, alerts, and a $4.99 Pro plan.

Freemium
View
Opus Clip logo
Coding & apps

Opus Clip

Opus.ai: Revolutionize Your Web Experience

Free
View