# US-Argentina diplomatic and economic relations

> Live situation record from CLSTR: https://clstr.news/situations/us-argentina-diplomatic-and-economic-relations
> Updated: 2026-10-15T22:38:09.000Z. Sources: 10. Developments: 3.

U.S. Ambassador to Argentina Peter Lamelas is pursuing several diplomatic and economic initiatives to strengthen bilateral ties. In September 2026, Lamelas confirmed efforts to reintegrate Argentina into the Visa Waiver Program (VWP), a process reportedly initiated by the U.S. Department of Homeland Security in July 2025. The goal is to allow Argentine citizens to enter the U.S. for tourism or business without traditional consular visas, potentially becoming operational by early 2027.

By October 2026, diplomatic focus expanded to include intellectual property and investment. Lamelas urged the Argentine Senate to expedite accession to the Patent Cooperation Treaty (PCT), noting that adherence could attract approximately $8 billion in investment over six years. While the Argentine Chamber of Deputies approved the accession in August, the measure returned to the Senate due to reservations regarding Article 64.

On October 15, 2026, the Argentine Senate’s committees on Foreign Relations and Worship, and Industry and Commerce, issued a favorable report on the PCT ratification project. The initiative seeks to modernize a patent framework dating back to 1884. The report includes a specific reservation regarding Chapter II, intended to protect the domestic pharmaceutical industry. Supporters, including Senator Francisco Paoltroni and La Libertad Avanza leader Patricia Bullrich, argued the treaty facilitates international cooperation without creating a “world patent” or stripping national authority. However, Senator Jorge Capitanich questioned the legal efficacy of these safeguards and whether they satisfy international commitments. The project is scheduled for debate in the Senate chamber on October 22.

## Timeline

### 2026-10-15: Argentine Senate advances Patent Cooperation Treaty ratification

The Argentine Senate has advanced a report to join the Patent Cooperation Treaty (PCT), including a reservation to protect the local pharmaceutical industry, with a floor debate set for October 22.

4 sources. https://clstr.news/cluster/argentine-senate-advances-patent-cooperation-treaty-ratification

### 2026-10-07: U.S. Ambassador urges Argentina to adopt Patent Cooperation Treaty

U.S. Ambassador Peter Lamelas urged the Argentine Senate to approve the Patent Cooperation Treaty, stating it could drive $8 billion in investment over six years.

2 sources. https://clstr.news/cluster/us-ambassador-urges-argentina-to-adopt-patent-cooperation-treaty

### 2026-09-16: US Ambassador seeks to return Argentina to Visa Waiver Program

U.S. Ambassador Peter Lamelas is working to return Argentina to the Visa Waiver Program, potentially allowing visa-free travel for tourism and business by early 2027.

4 sources. https://clstr.news/cluster/us-ambassador-seeks-to-return-argentina-to-visa-waiver-program

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Cite as: US-Argentina diplomatic and economic relations. CLSTR, https://clstr.news/situations/us-argentina-diplomatic-and-economic-relations