Trump may not honour auto tariff protections won by Canada, Mexico in 2018

Trump revived the 2019 Section 232 investigation findings to impose the 25 per cent tariffs that take effect on April 3, but White House officials made no mention of the 2018 USMCA side-letter promise

Donald Trump, Trump
Canada and Mexico won protections against potential new US auto tariffs in 2018 as part of the US-Mexico-Canada Agreement on trade. (Photo: PTI)
Reuters
5 min read Last Updated : Mar 30 2025 | 7:22 AM IST
Canada and Mexico won protections against potential new US auto tariffs in 2018 as part of the US-Mexico-Canada Agreement on trade, but there is no evidence that President Donald Trump will honour those commitments as he imposes 25 per cent duties on global automotive imports. 
The side letters to the USMCA trade deal agreed to by Trump's first administration granted both Mexico and Canada a 60-day delay on the imposition of any global auto tariffs as a result of his first-term Section 232 national security investigation into auto imports. 
Once that North America-only grace period expired, Canada and Mexico would each get an annual duty-free import quota of 2.6 million passenger vehicles and an unlimited number of light truck imports. 
The letters, signed by Trump's former US Trade Representative Robert Lighthizer, also granted Mexico a duty-free quota on annual parts imports valued at $108 billion and Canada a $34.2 billion parts quota. 
The agreements further stipulate that even for automotive products that are non-compliant with USMCA rules of origin, the Section 232 tariffs cannot exceed the tariff rate in effect on August 1, 2018 for the two countries - effectively 2.5 per cent. If upheld, this would provide relief to some automakers that had been shipping Mexican-built cars to the US at that tariff rate, including BMW. 
Trump revived the 2019 Section 232 investigation findings to impose the 25 per cent tariffs that take effect on April 3, but White House officials made no mention of the 2018 USMCA side-letter promises, subjecting Mexican and Canadian-built vehicles to immediate 25 per cent tariffs. 
Instead, they said the only carve-out for Mexico and Canada was to deduct the value of any US content from the 25 per cent tariffs on US vehicles and parts. Auto parts imports from Canada and Mexico will remain on a duty-free basis until the Commerce Department establishes a process for determining US content value, with no specified deadline. 
A separate issue is whether the deadline for the Section 232 auto tariffs expired in November 2019 under the original report.
Trump administration officials are aware of the issue, auto industry lobbyists said. 
HONOURING PAST COMMITMENTS 
The Canadian government confirmed the USMCA auto side letters' terms in an emailed statement to Reuters, and said it fully expects the US to honour the agreements. 
Canada also has the right to take retaliatory measures in response to US Section 232 tariffs that are inconsistent with USMCA and World Trade Organization obligations, the statement said. 
"Mexico is evaluating all the legal aspects before the USMCA and the WTO," said Luis Rosendo Gutierrez, the Mexican Economy Ministry's undersecretary for foreign trade. "The most important consideration is to identify what is best for Mexican consumers and producers." 
The Office of the USTR and the Commerce Department did not respond to Reuters' queries on the matter. 
The White House did not address questions about the protections but said: "America cannot just be an assembler of foreign-made parts – we must become a manufacturing powerhouse that dominates every step of the supply chain." Canadian Prime Minister Mark Carney spoke with Trump on Friday for the first time since taking office, a conversation described by both men as productive. But Carney won no commitment from Trump to ease tariffs on Canada, and warned the US president that he would impose retaliatory tariffs after Trump's April 2 reciprocal tariff announcement. 
ROOM TO GROW 
The auto quotas were meant to allow for some growth in Mexican and Canadian production. If honoured, they would still exceed US auto imports from the two countries. 
The protections agreed to by Lighthizer removed a major stumbling block to the completion of USMCA negotiations as Trump separately pursued the auto trade probe. They are posted alongside the USMCA main text on the USTR website. 
"The USMCA side letters for automotive were designed to prevent the very situation Canada and Mexico now confront - having to negotiate with the US with the tariffs hanging over their heads," said Dan Ujczo, a lawyer and former Canada trade envoy who specializes in US-Canadian trade matters. 
He noted that as USMCA negotiations came to a close in late 2019, the Trump administration granted tariff exemptions to Canadian and Mexican steel and aluminum imports, but Trump has since rescinded them. 
"As with steel and aluminum, the end game for autos is increased domestic investment and resetting the quotas, along with preventing Chinese OEMs (original equipment manufacturers)" into the North American value chain, said Ujczo, who is senior counsel with Thompson Hine in Columbus, Ohio. 
Lighthizer, who had been under consideration for senior Trump economic cabinet posts, declined to comment, referring a query to USTR. 
(Only the headline and picture of this report may have been reworked by the Business Standard staff; the rest of the content is auto-generated from a syndicated feed.)
   
*Subscribe to Business Standard digital and get complimentary access to The New York Times

Smart Quarterly

₹900

3 Months

₹300/Month

SAVE 25%

Smart Essential

₹2,700

1 Year

₹225/Month

SAVE 46%
*Complimentary New York Times access for the 2nd year will be given after 12 months

Super Saver

₹3,900

2 Years

₹162/Month

Subscribe

Renews automatically, cancel anytime

Here’s what’s included in our digital subscription plans

Exclusive premium stories online

  • Over 30 premium stories daily, handpicked by our editors

Complimentary Access to The New York Times

  • News, Games, Cooking, Audio, Wirecutter & The Athletic

Business Standard Epaper

  • Digital replica of our daily newspaper — with options to read, save, and share

Curated Newsletters

  • Insights on markets, finance, politics, tech, and more delivered to your inbox

Market Analysis & Investment Insights

  • In-depth market analysis & insights with access to The Smart Investor

Archives

  • Repository of articles and publications dating back to 1997

Ad-free Reading

  • Uninterrupted reading experience with no advertisements

Seamless Access Across All Devices

  • Access Business Standard across devices — mobile, tablet, or PC, via web or app

More From This Section

Topics :Donald TrumpTrump tariffsMexicoCanada

First Published: Mar 30 2025 | 7:21 AM IST

Next Story