Returns the docket metadata (title, abstract, RIN linking to the
Unified Agenda), the docket's total document count, counts by document
type and of documents open for comment across the whole docket, and one
page of its documents, most recent first, with types, subtypes, Federal
Register document numbers, dates, and URLs. subtype tells a withdrawal,
extension, or correction apart from a new proposed rule (a withdrawal
keeps document_type 'Proposed Rule').
comment_deadline is the Regulations.gov metadata date in Eastern time;
comment_end_date_utc preserves its UTC instant. comment_deadline_verification
links to the notice/docket. Read DATES, eligibility, and later extensions
before treating it as controlling; if unavailable, the controlling date
cannot be established. Page 1 also gives
posted_comments for the whole docket: comments posted publicly, not
comments received (mass-mail duplicates and unposted comments are not
in it).
When the docket has more documents, truncated=true and next_page_number
gives the page that continues the list.

page_size: 5-100 documents per page (default 25). page_number: 1-40.

docket_id examples: FAR-2023-0008, DARS-2025-0071