Federal Register API: Rules, Notices & Proposed Rules, $1/1K
Pricing
from $0.70 / 1,000 federal register documents
Get Federal Register rules, proposed rules, notices and presidential documents from the official federalregister.gov API. Search by keyword, agency, type and date, look up numbers, list upcoming documents or monitor new ones. $1 per 1,000. Unofficial, not affiliated with the OFR.
mode
Optional
search, by_number, public_inspection or monitor.
document_number
Optional
Federal Register document number, such as 2026-19071.
title
Optional
Document title.
type
Optional
Rule, Proposed Rule, Notice or Presidential Document.
abstract
Optional
Short summary written by the agency. Empty for some notices and presidential documents.
agencies
Optional
Names of the agencies that issued the document.
publication_date
Optional
Date published in the Federal Register (for public inspection documents, the planned publication date).
effective_on
Optional
Date the rule takes effect, if the document gives one.
citation
Optional
Federal Register citation, such as 91 FR 64811.
start_page
Optional
First page in the Federal Register volume.
end_page
Optional
Last page in the Federal Register volume.
html_url
Optional
Link to the document on federalregister.gov.
pdf_url
Optional
Link to the official PDF on govinfo.gov (for public inspection documents, the filed PDF).
docket_ids
Optional
Agency docket identifiers, such as EPA-HQ-OAR-2025-0194.
regulation_id_numbers
Optional
Regulation Identifier Numbers (RIN) from the Unified Agenda, such as 3038-AF80.
cfr_references
Optional
Parts of the Code of Federal Regulations the document changes or concerns, such as 40 CFR 60.
significant
Optional
True when the document is marked significant under Executive Order 12866. Empty when the Federal Register gives no value.
action
Optional
The action line of the document, such as Final rule or Notice of meeting.
filed_at
Optional
Public inspection only: when the agency filed the document.
filing_type
Optional
Public inspection only: regular or special filing.
public_inspection_pages
Optional
Public inspection only: number of pages of the filed document.
status
Required
ok for documents (charged). no_results, not_found, invalid_input, invalid_query, access_blocked, rate_limited or api_error for free rows.
error
Optional
Reason, for free rows.
charged
Required
True when this row was charged as a document.
source
Optional
Data source credit line.
comments_close_on
Optional
Last day to send public comments, if the document is open for comment.