Where can the official House cosponsor roster for a resolution be downloaded and how often is it updated?
Executive summary
The official House cosponsor roster for any resolution can be downloaded from the House and Library of Congress websites: the Office of the Clerk (and linked House Republican Cloakroom cosponsor sheet) provides the procedural forms used to add cosponsors and Congress.gov publishes bill- and resolution-specific cosponsor rosters online [1] [2]. The public roster on Congress.gov reflects the Clerk’s records and shows "current" cosponsor statistics for each measure, but the sources do not state a fixed clockwork schedule for how often those public pages are refreshed; they document the clerical process (including electronic submission) that produces the roster [3] [4].
1. Where the official roster is published and downloadable
The canonical public-facing place to view and download a resolution’s cosponsor list is Congress.gov, the Library of Congress legislative site, which has a dedicated “Cosponsors” view for each bill, amendment, or resolution (for example, the cosponsor page for H.Res.581) and includes sortable displays and cosponsor statistics [2] [3]. For the internal, procedural form that Members use to add themselves as cosponsors, the Office of the Clerk and House Cloakroom make an official cosponsorship form available for download—House Republican Cloakroom explicitly instructs Members to download a cosponsor sheet from its site or the Clerk’s office and explains how that sheet is attached to a bill [1]. The Clerk’s processes and the downloadable forms it issues are described in Library of Congress/CRS material explaining sponsorship and cosponsorship procedures [4].
2. How the roster is created: clerk forms, the hopper and electronic submissions
Cosponsor lists originate in formal submissions to the Clerk: Members may add their names on a printed cosponsorship form dropped in the “hopper” or submit the names electronically to the Clerk’s eHopper system, and sponsors must follow Rule XII formalities when required [4]. The Republican Cloakroom guidance reiterates that Members may submit cosponsor sheets physically or through internal channels and specifies how many names fit on a sheet—procedural details that underlie the official roster seen publicly [1]. EveryCRS and Congress.gov explain the linkage: the Clerk’s office compiles cosponsor names from these forms and that compilation is the basis for what appears as “original” or “additional” cosponsors on publicly accessible records [4] [5].
3. Where to download the practical files used by House offices
For staff or Members seeking the exact cosponsor form used inside the House, the Cloakroom site and the Clerk’s office are the authoritative sources for the downloadable PDF forms; the Cloakroom page explicitly provides the cosponsor sheet and instructions for submission and handling [1]. The publicly downloadable roster that most journalists, researchers, and the public will use is the per-measure cosponsors page on Congress.gov, which offers sorting and export-friendly displays so the public can obtain the names and statistics for any given resolution [2] [3].
4. How often the public roster is updated — what the record shows and what it doesn’t
Congress.gov presents cosponsor statistics labeled “current” and lists additions and withdrawals on individual measure pages [3] [6], indicating that the site reflects changes maintained by the Clerk, but none of the provided sources declare a strict, published polling interval (for example, “updated every X minutes”); instead, the CRS and Clerk descriptions focus on the submission mechanisms (paper or electronic) that produce updates rather than a public refresh cadence [4] [5]. In practice, the public roster is updated as the Clerk processes submissions: entries added by the Clerk via the hopper or eHopper become part of the official record that Congress.gov displays, but the exact latency between a Member’s submission and the live Congress.gov page is not specified in the cited materials [4] [2].
5. Practical takeaway and transparency caveats
For anyone needing the authoritative list: download the measure’s “Cosponsors” page from Congress.gov for the public, exportable roster and, for internal procedural forms, use the Clerk’s or Cloakroom’s downloadable cosponsor sheet; both sources are explicitly documented in House and Library of Congress materials [2] [1] [4]. A final caveat: while Congress.gov displays “current” cosponsor statistics and lists, the available sources document the clerical submission process but do not promise a defined, machine-readable update interval—so users should expect updates to follow Clerk processing rather than occur on a published fixed schedule [3] [4].