The U.S. government has officially decided not to automatically extend the United States-Mexico-Canada Agreement (USMCA) for another 16 years. Instead, the agreement will now undergo annual reviews until it potentially expires in 2036.

美國政府已正式決定不將《美墨加協定》（USMCA）自動延長 16 年。相反地，該協定現在將每年進行審查，直到 2036 年可能到期為止。

The administration decided against the automatic renewal because it wants to fix trade deficits and address specific problems. U.S. Trade Representative Jamieson Greer emphasized that third-party countries, especially China, might use Canada or Mexico to get their products into the U.S. market. For example, Canada recently agreed to import 49,000 Chinese electric vehicles. Consequently, Washington is calling for stricter 'rules of origin.' They propose increasing the North American content requirement for cars from 75% to 82%, and they want 50% of those goods to be made specifically in the United States.

政府決定不採取自動續展，是因為希望解決貿易逆差並處理特定問題。美國貿易代表 Jamieson Greer 強調，第三方國家，尤其是中國，可能會利用加拿大或墨西哥將產品進入美國市場。例如，加拿大最近同意進口 49,000 輛中國電動車。因此，華盛頓要求更嚴格的「原產地規則」。他們建議將汽車的北美含量要求從 75% 提高到 82%，並要求這些商品中有 50% 必須在美國境內製造。

There is a clear difference between the government's strategy and the preferences of the industry. Business leaders in the automotive sector have stressed that the USMCA provides necessary stability for supply chains, where parts often cross borders many times during production. While Ford CEO Jim Farley supports encouraging domestic production, economists warn that this uncertainty could discourage investment. Furthermore, they suggest that if tariffs are brought back, consumers might face higher prices for cars and farm products.

政府的策略與工業界的偏好之間存在明顯差異。汽車產業的商界領袖強調，USMCA 為供應鏈提供了必要的穩定性，因為零件在生產過程中經常多次跨境。雖然福特（Ford）執行長 Jim Farley 支持鼓勵國內生產，但經濟學家警告，這種不確定性可能會抑制投資。此外，他們指出如果恢復關稅，消費者可能會面臨汽車和農產品價格上漲。

Diplomatic relations are also complicated by existing tariffs on Canadian steel, aluminum, and lumber. Although Canada and Mexico are willing to negotiate on digital trade and security, they have warned that they might take retaliatory actions if an agreement is not reached. However, some analysts believe that the U.S. focus on conflicts in the Middle East has reduced the immediate political tension surrounding these negotiations.

由於現有對加拿大鋼鐵、鋁和木材的關稅，外交關係也變得複雜。雖然加拿大和墨西哥願意就數位貿易與安全進行協商，但他們警告，若無法達成協議，可能會採取報復行動。然而，部分分析師認為，美國將重心轉向中東衝突，降低了這些協商周邊的即時政治緊張局勢。

The USMCA is still in effect for now, but its long-term future depends on the results of the current negotiations between the three countries.

USMCA 目前仍然有效，但其長期前景取決於目前三國之間協商的結果。