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Build a citation you can explain

Read the source. Make a choice. Check the reason.

Book exercise 1 of 9

Exercise 12.1

Link to this exercise

Write your answer, compare the model, then explain your revision. These written responses are self-assessed.

Open lesson and source packet

Opening problem

Your draft cites a proposed rule as though it were an operative regulation. Its Federal Register page contains an agency explanation, proposed text, and a comment deadline. The citation must distinguish those materials before it can accurately support the sentence.

Learning objectives

Distinguish codified regulations, rulemaking publications, proposals, preambles, and agency decisions; collect title/section or volume/page information; identify dates and status; and avoid treating agency guidance as binding solely because it has an official URL.

Regulations and publication stages

The Code of Federal Regulations organizes federal regulatory text by title and section. A conventional citation identifies title number, C.F.R., section, and the applicable edition/year. Subsections locate the precise command. An eCFR display is an electronic presentation with its own currency information; record what it says about the version rather than substituting retrieval date for legal effectiveness.

The Federal Register publishes rulemaking notices and other materials in volume/page/date form. It can contain proposed text, final text, effective dates, explanations, notices, and corrections. Identify which component supports your sentence. A preamble explanation is not the codified rule text, although it can be relevant to understanding the agency's action.

The chapter includes a verified historical federal-regulation model and a Federal Register publication model below. Its separate Harbor packets are fictional, allowing practice without confusing invented provisions with real law.

Annotated training model

Fictional training example — not legal authority. Packet: fictional Harbor Administrative Code, title 4, section 12.3(b), edition 2025; text requires a signed application. Training citation: Harbor Admin. Code tit. 4, § 12.3(b) (2025).

Component Function
Harbor Admin. Code Identify the fictional regulatory compilation.
tit. 4 Compilation title.
§ 12.3(b) Section and precise subdivision.
(2025) Inspected fictional edition.

For a real federal regulation, replace the fictional compilation with the actual title-number/C.F.R. pattern and inspect its text and version. For a state regulation, follow the state's actual code structure and local requirements. Do not present a training label as a real abbreviation.

Proposed and final materials

Fictional training example — not legal authority. A Harbor agency notice dated March 1, 2025, proposes removing the signature requirement. Its status field says “proposed”; the packet contains no final adoption. The operative 2025 fictional code still requires a signature. A sentence saying “The agency has eliminated signatures” is unsupported by the proposal. A supported sentence says the agency proposed that change, with a citation identifying the proposal.

A final rule can have a later effective date. Publication is not necessarily the moment its commands govern. A correction can change text. A judicial order can affect implementation. Citation formatting cannot establish applicability without version and status research.

Federal Register patterns identify proposed-rule status and anticipated codification information where appropriate; codified-regulation patterns identify the compilation's title and section. Do not omit a proposal label to make a draft look shorter; the status is central to the proposition.

Agency adjudications and orders

Administrative decisions can appear in official reporters, services, databases, or agency documents. Their formats depend on the agency and publication. Collect the proceeding name, decision or release number, reporter/service information, page or paragraph locator, deciding body, and date as applicable. The agency reference table provides orientation, with historical publications and some legacy names. It is not a current directory of every agency publication.

An administrative law judge's decision is not necessarily the agency's final decision. Identify the deciding level and status. A staff no-action letter, interpretive release, commission order, and adjudication can have different functions. Their official origin does not make every statement a universally binding legal rule.

A reference table's access link can lead to a different document from the one named. Match the opened item's title and identifying information before using its text. Retain any mismatch in the research record and find the actual source before relying on it.

Guidance and online materials

An agency FAQ or guidance page is still an agency page, not automatically a regulation. Identify its title, issuing office, date/status, and URL under the appropriate electronic-source rule. If the sentence describes what the agency's guidance says, attribute it to the guidance. If it states an enforceable legal duty, research the statute, regulation, order, or other operative source establishing that duty.

Save a permissible copy or snapshot for mutable pages. Record the difference between publication, update, and retrieval dates. A last-modified label may describe the page rather than the underlying policy. Avoid guessing a legal effective date from website metadata.

Worked editing routine

Read the source title and status. Identify its publication system. Locate the exact text supporting the sentence. Record its version and effective-date information. Construct the citation. Then review the sentence's verb: proposed, adopted, requires, recommends, explained, or ordered. Each verb makes a different claim. Supply a local-rule check when the receiving document requires a specific source or format.

Common mistakes and repairs

Mistake Repair
Proposal cited as operative law Identify the proposal and find any actual final adoption.
Register preamble called codified text Cite and characterize the actual component used.
Agency FAQ assumed binding Investigate its role and the operative legal source.
Edition year replaced by access year Preserve the inspected regulatory version.
ALJ ruling called commission holding Identify deciding level and finality.

Compact reference

Codified text: title/code/section/version. Rulemaking publication: title or subject, volume/publication/page/date/status. Agency decision: agency-specific identifying fields and pinpoint. Guidance: its actual title/date/URL and attributed role.

Worked editing session: follow a rulemaking through its forms

Fictional training example — not legal authority. A supplied agency packet contains a March 1, 2025 proposal requiring ten days' notice; a June 1 final rule requiring fourteen days, effective July 1; and a later code compilation placing the fourteen-day requirement in § 30. Assume the quoted rule applies from July 1 and the packet contains no exception or transition clause.

The draft combines them: “The March 1 rule requires fourteen days under § 30.” That sentence borrows the date from the proposal, the number of days from the final rule, and the section address from the code. No single item has that identity.

Choose the source according to the sentence's job:

Sentence's job Source and locator to use
Describe the proposed ten-day period March 1 proposal and its actual proposed-text locator.
Explain why the agency selected fourteen days The final rule's explanation, if it supplies that rationale.
Identify the July 1 effective date The final rule's effective-date provision.
State the codified fourteen-day requirement The identified code edition, § 30.

A revision can make the sequence visible: “The agency proposed ten days in March and adopted fourteen days in June, with the new requirement effective July 1.” Cite the proposal and final rule at their corresponding clauses. If the paragraph merely states the codified duty, use the code citation without rehearsing the whole history. The amount of history follows the legal question.

Do not assume a final rule's first page supplies every proposition about it. Its summary may describe the change broadly; its preamble may explain the choice; its amendatory instructions may specify exactly what language replaces the old text. Find the passage that performs the claimed function. When a paragraph says the agency rejected an alternative, cite the discussion of that alternative rather than the first page simply because it identifies the document.

For an agency adjudication, make a different distinction: an initial decision's reasoning, a reviewing body's disposition, and a later correction are separate documents. A citation to the initial decision can support what that decision said. It cannot alone show whether the reviewing body adopted the reasoning. Follow the procedural event named in your sentence.

A verified federal-regulation model

The inspected 2024 edition directs a public entity to make necessary reasonable modifications to policies, practices, or procedures to avoid disability discrimination, subject to the stated fundamental-alteration exception. 28 C.F.R. § 35.130(b)(7)(i) (2024). This sentence describes that subdivision's text, not the outcome of a particular accommodation dispute. The adjacent subdivision supplies an additional limitation, illustrating why the exact pinpoint and surrounding context both matter.

Citation element Reading decision
28 Title of the Code of Federal Regulations.
C.F.R. The codified regulatory publication.
§ 35.130 Section within that title.
(b)(7)(i) Three nested subdivisions leading to the inspected text.
(2024) Historical annual edition actually inspected.

The supporting paragraph appears on printed page 594, the second sheet of the saved section PDF. That printed page is useful in the verification record, but the citation's regulatory pinpoint is § 35.130(b)(7)(i). The page header on that sheet also names the next section, § 35.131. Read the continuation of § 35.130 above it; a running header is not a substitute for following the provision's actual text across the page break. The official file identifies a July 1, 2024 edition. Its later typesetting timestamp does not change that edition date.

A real Federal Register item has several relevant dates

The Department of Justice published its web-accessibility final rule at Nondiscrimination on the Basis of Disability; Accessibility of Web Information and Services of State and Local Government Entities, 89 Fed. Reg. 31,320 (Apr. 24, 2024) (to be codified at 28 C.F.R. pt. 35). The first page labels the action a final rule and gives an effective date of June 24, 2024. It separately lists compliance dates. This model illustrates the information printed in the 2024 publication; it does not represent a later compliance-date update or a current application assessment.

That citation demonstrates three numbers with different jobs. The 89 is the Register volume, 31,320 is the document's first page, and 35 is the intended C.F.R. part. None can replace the others. An explanation elsewhere in the document needs its actual Register page as a pinpoint. Because the demonstrated dates appear on the first page, the first-page locator already reaches the inspected passage. Do not use the PDF's sheet number as the published page.

When a rulemaking document contains codified text near its end and an extensive preamble before it, identify both the source and the component. “The agency explained” directs attention to the preamble; “the regulation provides” ordinarily directs attention to operative regulatory text. If the distinction matters to the argument, make it explicit in the sentence or explanatory parenthetical. The same volume and document title do not eliminate that distinction.

Advanced workshop: a complete administrative source record

An agency's document number is not always a publication locator. A proceeding may have a docket number shared by many submissions, while a particular order has its own release number and date. A reported decision adds volume, reporter, and page information. Preserve the identifiers that distinguish the item you actually use; do not substitute a proceeding's common docket number for a particular order's identity.

Fictional training example — not legal authority. The Harbor Commission's Docket 25-14 contains a staff memorandum dated March 3, an initial decision dated June 5, and a commission order dated September 8. The memorandum recommends a thirty-day filing period. The initial decision selects twenty days. The commission order expressly adopts that twenty-day result but rejects the initial decision's explanation. Each document begins its own pagination.

“The commission adopted the initial decision” is too broad. The packet supports a narrower account: the commission adopted the twenty-day result and rejected the initial explanation. Locate those statements in the September order. If discussing the initial reasoning, identify the June decision separately. “Docket 25-14, at 4” is inadequate because three documents can each contain a page 4. Add the document title, deciding body or author, and date needed to distinguish them under the receiving format.

A correction notice poses a similar problem. If it changes only a cross-reference, do not describe it as a new substantive rule. If your quoted sentence lies in the corrected passage, compare the original and correction and identify the text you actually use. An unchanged title or docket number does not guarantee unchanged wording.

Agency summaries and party comments also need accurate speakers. “A commenter predicted increased costs” identifies the commenter. “The agency estimated increased costs” requires an agency statement. A final rule can report a comment without adopting it. Follow the attribution within the paragraph before selecting a parenthetical.

Reported agency decisions, unreported orders, and arbitration awards have different citation patterns. For an arbitration award, preserve the parties, deciding arbitrator or panel, award date, available publication, and actual locator; an adversary caption uses v., while a nonadversary matter follows its supplied title. The arbitrator's role may need identification. These fields provide a retrieval starting point, not a universal formula for every arbitral institution or a conclusion about an award's enforceability.

Source laboratory: same title, different regulatory events

Two EPA publications share the title Reconsideration of the National Ambient Air Quality Standards for Particulate Matter. The title alone cannot distinguish their legal roles. The January 27, 2023 publication appears at 88 Fed. Reg. 5,558 and identifies its action as a proposed rule. Its first page gives March 28, 2023 as the comment deadline. The March 6, 2024 publication appears at 89 Fed. Reg. 16,202 and identifies its action as a final rule, with a stated effective date of May 6, 2024. These are historical source facts, not a conclusion about the standards operative today.

The correct research comparison begins with the publication header, action label, and dates field. It then asks which document supports the intended sentence. “EPA proposed a revision in January 2023” points to the proposal. “The March 2024 final publication stated a May 6 effective date” points to the final item. A sentence about a current regulated party's duties would need additional research into the applicable text, later changes, judicial orders, and the facts. Neither first page alone answers that broader question.

Question the sentence answers Source and locator
What document invited comments by March 28, 2023? Proposed publication, 88 Fed. Reg. 5,558.
What effective date did the March 2024 final publication state? Final publication, 89 Fed. Reg. 16,202.
What requirements govern a particular activity now? Requires separate current-text, status, and applicability research.

A proposal citation can read: Reconsideration of the National Ambient Air Quality Standards for Particulate Matter, 88 Fed. Reg. 5,558 (proposed Jan. 27, 2023) (to be codified at 40 C.F.R. pts. 50, 53 & 58). The prospective codification information comes from the document's stated parts. It does not convert proposed text into codified law. The comparable final-publication model is Reconsideration of the National Ambient Air Quality Standards for Particulate Matter, 89 Fed. Reg. 16,202 (Mar. 6, 2024) (to be codified at 40 C.F.R. pts. 50, 53 & 58). That parenthetical identifies the publication's stated codification destination; it is not a certification of the present contents of those parts.

Notice the role of each number. The Register volume and first page identify the publication. The C.F.R. parts identify its regulatory destination. The date in the main parenthetical is the publication date, while the sentence can separately state the effective date. Replacing March 6 with May 6 would corrupt the publication's identity while trying to communicate a different fact.

For a longer notice, make a passage map separating the summary, the agency's explanation, the amendatory instructions, and the regulatory text. A quoted policy explanation may belong to the preamble even when the eventual legal command appears many pages later. The pinpoint must locate what you actually use. In this comparison the claims concern the first-page status and date fields, so that is the inspected scope; the lesson does not imply that every scientific finding or regulatory amendment in either lengthy publication was reviewed.

Takeaway

Administrative citation starts with status and source type. A government webpage can contain proposals, explanations, guidance, or operative commands; your sentence must identify the right one.

Chapter source note

Citation conventions draw on The Indigo Book 2.0, R19, R22, T2, and T3.

Historical federal examples use 28 C.F.R. § 35.130 (2024), printed pages 593–94; the DOJ final rule, 89 Fed. Reg. 31,320 (Apr. 24, 2024), first page; and EPA's proposal, 88 Fed. Reg. 5558 (Jan. 27, 2023), and final rule, 89 Fed. Reg. 16,202 (Mar. 6, 2024), first pages. The EPA comparison concerns document identity, status, and printed dates, not the scientific findings or subsequent amendments. Harbor materials are fictional.

Fictional training example — not legal authority.

Construct the supplied fictional Harbor regulation citation for its signed-application subdivision.

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