# USMCA (United States-Mexico-Canada Agreement)
> The trilateral trade agreement governing roughly US$1.8 trillion in annual North American commerce, currently under a decade of annual reviews after the US declined to extend it in July 2026.

**Meta:** type: reference · date: 2026-07-03 · heads:  · 4 takes · 4 lenses · 1 regions

## What it is

The USMCA is the trilateral trade agreement among the United States, Mexico and Canada. It entered into force on 1 July 2020, replacing the North American Free Trade Agreement (NAFTA), which had governed North American commerce since 1 January 1994. The pact spans 34 chapters covering goods market access, rules of origin for automobiles and manufactured goods, labor enforcement, digital trade, intellectual property, currency disciplines, and state-owned enterprises. US goods and services trade with its two USMCA partners totaled roughly US$1.8 trillion in 2022. A three-minister Free Trade Commission, one from each country, administers the agreement. All three countries' legislatures ratified the text: the US Congress passed the USMCA Implementation Act, signed in December 2019; Canada enacted Bill C-4 in March 2020; Mexico's Senate approved the pact in June 2019.

## History

NAFTA entered into force on 1 January 1994, eliminating most tariffs among the US, Canada and Mexico over 15 years and anchoring the integration of North American supply chains, particularly in autos, aerospace and agriculture. During the 2016 US presidential campaign, Donald Trump called NAFTA "the worst trade deal ever made." Formal renegotiation talks opened in August 2017, and the three countries signed a successor text in November 2018 in Buenos Aires. The agreement tightened auto rules of origin to require 75% North American content, up from 62.5% under NAFTA, and introduced a labor-value content rule requiring 40-45% of auto production to originate from workers earning at least US$16 per hour. The text included a built-in Article 34.7 mechanism: a mandatory joint review at the six-year mark, with the option to extend the agreement for a 16-year term to 2042 or, if no extension is agreed, automatic annual reviews until the pact expires in 2036.

## Current state

The six-year mandatory joint review under Article 34.7 was triggered on 1 July 2026. On 10 June 2026, US President Trump announced the US would not renew the agreement in its current form, foregoing the 16-year extension to 2042. Under Article 34.7.4, that decision activates annual joint reviews each year until the parties either agree to extend or the agreement expires on 1 July 2036. For the full account of the non-renewal and its immediate effects, see [Trump declines to renew USMCA, triggering a decade of annual reviews](/zh/n/usmca-non-renewal). As of early July 2026, Mexico's President Claudia Sheinbaum and Canada's PM Mark Carney had formed a joint negotiating front. Carney characterized US tariffs applied outside the USMCA framework as treaty violations; Sheinbaum pursued a de-escalation track, having pre-emptively imposed tariffs of up to 50% on roughly 1,400 products from non-FTA countries, including China, to demonstrate alignment with US supply-chain concerns. The central US demand is enhanced screening of Chinese-origin content and investment in North American supply chains. Mexico's energy sector rules, specifically the CFE's priority-dispatch provisions and the Mexican state's 54% share of electricity generation, are a secondary fault line alongside auto rules of origin.

## Relationships

USMCA binds three economies whose goods trade exceeds US$1.8 trillion per year and shields roughly 90% of Canadian exports to the US from tariffs. Mexico has run persistent goods-trade surpluses with the US, a source of recurring political pressure in both NAFTA and USMCA reviews. Canada's trade relationship with the US is more balanced across goods and services. The [谢因鲍姆以对华加征关税取悦华盛顿为铺垫，步入USMCA审议](/zh/n/sheinbaum-usmca-review-china-test) node covers Mexico's pre-emptive tariff campaign against Chinese goods, which positioned Mexico going into the 2026 review. USMCA's Chapter 31 dispute-settlement mechanism has been invoked over Canada's supply-managed dairy sector and Mexico's energy-sector policy priorities, both of which remained contested as of July 2026.

## What to watch

Whether annual reviews produce substantive renegotiation or simply maintain the pact in legal limbo until 2036. The US auto-content and labor-value thresholds are the most litigated provisions, with producers seeking clarity on Chinese-origin parts. Mexico's treatment of Chinese manufacturing investment in its nearshoring corridor will be Washington's primary benchmark for Chinese-content compliance. Watch whether Canada and Mexico sustain their joint negotiating front or the US succeeds in opening separate bilateral tracks, which would reduce each country's leverage individually.

## Regional takes (batched by bias / lens)

### official agreement page
- **United States Trade Representative** (United States, en) — Official USTR landing page for USMCA, covering the pact's entry into force on 1 July 2020, its 34-chapter structure, and trade-volume data showing US goods and services trade with USMCA partners at roughly US$1.8 trillion in 2022.
  Source: https://ustr.gov/trade-agreements/free-trade-agreements/united-states-mexico-canada-agreement

### policy analysis
- **CSIS** (United States, en) — Explains the Article 34.7 three-way decision (16-year extension, annual reviews, or expiry in 2036), identifies rules of origin, energy access, and Chinese-content screening as the core fault lines, and argues trilateral Canada-Mexico coordination is the decisive variable.
  Source: https://www.csis.org/analysis/inside-mechanics-2026-usmca-review

### legislative reference
- **Congressional Research Service** (United States, en) — CRS report R48787 covering the USMCA joint-review process, the role of the US Congress, the Article 34.7 mechanism, the 1 July 2026 trigger date, and the annual-review fallback if no 16-year extension is agreed.
  Source: https://www.congress.gov/crs-product/R48787

### trade-law analysis
- **White & Case LLP** (United States, en) — Legal alert confirming the US declined to extend USMCA on 1 July 2026, activating Article 34.7.4 annual reviews through 2036, and summarising the legal consequences for importers and supply-chain planners.
  Source: https://www.whitecase.com/insight-alert/usmca-2026-joint-review-united-states-declines-extend-agreement-triggering-annual

## Across the graph
- Related: [[usmca-non-renewal]], [[sheinbaum-usmca-review-china-test]]
- Entities: Usmca, United States, Canada, Mexico, Person:claudia Sheinbaum

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Canonical: https://rbtfl.xyz/zh/n/usmca-dossier