Reading a Federal Register Rule: The Fields That Matter
Document number, action, effective date, comment-close date and citation — the five fields that tell you what a rule does and when.
A Federal Register document looks dense, but a handful of fields carry almost all of the decision-relevant information. Reading them in order is faster than reading the notice top to bottom.
Document number
The document number (for example, a number in the form YYYY-NNNNN) is the unique identifier of the notice. It is how the document is cited, how you find it later, and how you know two pages of search results are the same rule. The register on this site prints the document number on every entry and links the original.
Type and action
The type — proposed rule, rule, notice — tells you the stage of the change. The action line summarises what the document does in the agency's own words. Together they answer the first question: is this a proposal, a temporary change or an adopted rule?
Publication date and effective date
The publication date is when the notice appears in the Federal Register. The effective date is when the change takes legal effect. They are frequently different. A rule can be published with an effective date weeks later; a proposed rule has no effective date until it is finalised.
Comment-close date
On a proposed or interim rule, the comment-close date is the deadline to submit comments to the rulemaking record. This is the field to check first if you want to influence the rule rather than react to it.
Citation
The citation — the title and part of the Code of Federal Regulations the document affects — tells you which part of the rulebook changed. Title 48 is the acquisition regulation. Within it, narrow parts map to specific subjects: contract clauses, small-business programs, cost principles, and so on. Reading the part, not just the agency, tells you whether the change touches your work.
Putting it together
Document number to cite it, type and action to stage it, publication and effective dates to time it, comment-close date to act on it, citation to locate it. Every entry in this register carries those fields and a link to the source, so a claim here can always be checked against the government record.