CLAIM UNDER REVIEW
Minute 334 establishes U.S.–Mexico Colorado River cooperative measures through December 31, 2028.
Minute 334 establishes U.S.–Mexico Colorado River cooperative measures through December 31, 2028.
Assessment
The cited evidence establishes the claim as stated.
This is an editorial assessment of the cited evidence, not a finding by a court or public authority.
Evidence summary
The official Minute and archive record September 2 signing and September 8 approval by both governments, with measures through December 31, 2028.
What the evidence establishes
The official Minute and archive record September 2 signing and September 8 approval by both governments, with measures through December 31, 2028.
What it does not establish
That Mexico is a Lower Basin state or that its measures are included in Arizona’s conditional 760,000-acre-foot share.
What remains unknown
Full effects of each treaty implementation measure are outside this scoped claim.
Supporting sources 3
- Primary source · Government recordIBWC, Minutes archive
Minute 334 entry: signing and both government approval dates.
- Primary source · Government recordIBWC, official Minute 334
PDF p. 1: signing date and term. This is a scanned official document. The cited provision was verified visually in the official copy.
- Primary source · Public statementReclamation, September 9 U.S.–Mexico agreement announcement
Additional official announcement and bundled material: https://www.ibwc.gov/wp-content/uploads/2026/09/US-and-Mexico-announce-Colorado-River-cooperative-agreement.pdf
Contradicting sources
No published contradicting sources are attached. This does not establish that none exist.
Sources 3
- Primary source · Government recordIBWC, Minutes archive
Minute 334 entry: signing and both government approval dates.
- Primary source · Government recordIBWC, official Minute 334
PDF p. 1: signing date and term. This is a scanned official document. The cited provision was verified visually in the official copy.
- Primary source · Public statementReclamation, September 9 U.S.–Mexico agreement announcement
Additional official announcement and bundled material: https://www.ibwc.gov/wp-content/uploads/2026/09/US-and-Mexico-announce-Colorado-River-cooperative-agreement.pdf
Timeline events 2
- United States and Mexico sign Minute 334
Minute 334 is signed in El Paso, Texas. It addresses Colorado River cooperative measures through December 31, 2028, separately from the Lower Basin state-sharing arrangement.
- Both governments approve Minute 334
The IBWC archive records approval by the United States and Mexican governments on September 8, 2026. Approval follows the September 2 signing.
Related articles 1
- ExplainerArizona Is Losing Colorado River Water. Is Yuma?
Arizona’s conditional 760,000-acre-foot share does not establish a uniform 27% cut to Yuma. Here is what the official records say about local priorities, planning and the decisions still unresolved.
Organizations 1
- International Boundary and Water Commission
Binational commission whose Minute 334 records Colorado River cooperative measures through December 31, 2028.
Related topics 1
- Colorado River Water & Yuma
What federal Colorado River reductions mean for Yuma-area water holders, with evidence on priorities, planning, conservation and unresolved delivery decisions.