Federal Register vs CFR: What's the Difference?

The short version

The Federal Register is where federal agencies publish daily rulemaking documents and notices. The Code of Federal Regulations, usually called the CFR, is where general and permanent federal regulations are organized after they are adopted.

If you are watching for change, start with the Federal Register. It publishes rules, proposed rules, notices, and presidential documents. A proposed rule is often where the public comment window opens. A final rule states what the agency adopted, identifies the legal authority, gives the effective date, and usually explains the basis and purpose of the decision. In notice-and-comment rulemaking, the agency must consider relevant comments and respond to significant issues in the rulemaking record. Notices can announce meetings, information collections, guidance availability, hearings, and other deadlines.

If you need current rule text, use the CFR or the eCFR. The CFR is arranged by subject across 50 titles. The eCFR at ecfr.gov is the practical online place to read frequently updated CFR text, but it is not an official legal edition. Official legal research may still require checking the daily Federal Register and official CFR sources.

How a rule moves from proposal to CFR

The common path is agency authority, proposed rule, public comments, final rule, then codification in the CFR.

• An agency needs legal authority from Congress or another valid source before it can issue a regulation.
• The agency may publish a proposed rule in the Federal Register and open a comment period. Some comment periods are 30 or 60 days, but there is no single deadline that applies to every rule. The specific Federal Register document controls.
• The public usually submits comments through regulations.gov or by another method named in the Federal Register document.
• The agency reviews relevant comments, decides whether to change the proposal, and may publish a final rule in the Federal Register.
• If the final rule adds, removes, or revises general and permanent regulatory text, that change is reflected in the CFR.

The effective date matters. A final rule can publish before it applies, and a rule can also have later compliance dates for specific duties. The Federal Register document is the place to check effective dates, compliance dates, comment deadlines, and contact information. The CFR is better for reading the standing rule once the change has been incorporated.

Which source should you use?

Use the Federal Register for timing and change. Use the CFR for organized regulatory text.

• Use the Federal Register when you need new proposals, final rules, notices, comment deadlines, effective dates, agency explanations, or the docket number.
• Use the CFR or eCFR when you need regulation text organized by title, part, and section.
• Use Regulations.gov when you need the docket, supporting materials, public comments, or the comment submission form for an open rulemaking.
• Use the agency contact listed in the document when you need an official answer about how a rule applies to your facts.

The mistake is treating the CFR as an alert system. It is not. By the time a change appears there, the proposal and comment deadline may already be behind you. For monitoring, search the Federal Register directly at federalregister.gov or create a free watch with RegWatch so matching documents and public-comment deadlines reach you when they publish.