Corridor watch: tariffs and rules in force

Written By Shrinivas G
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US and Mexican tariff rules for the corridor changed several times in 2026. This page lists every measure in force, ended or pending as of October 23, 2026, with its start date, legal basis and status.

Published October 23, 2026 · Facts as of October 23, 2026 · 16 min read · Sources listed at the end · Rules as of October 23, 2026

Facts as of October 23, 2026. This page states the facts as they stood on that date. Tariffs, rules and figures may have changed since publication. Tariffs and trade policy change often, so we review these pages every month and update them.

10%Section 301 tariff on Mexican goods since July 24, 2026. Exempt with a USMCA claim; Section 232 goods excluded 4,6
50 / 25 / 15%Section 232 metals rates by annex (I-A, I-B, I-C) under Proclamation 11032, from June 8, 2026 10,11
88%Share of US imports from Mexico that were USMCA-compliant, January to May 2026 2
Jul 1, 2036Date USMCA ends unless the three countries confirm an extension; annual reviews run until then 7

What is it?

A dated list of the US and Mexican measures that set the duty on goods crossing the border, as of October 23, 2026. It covers Section 232 and Section 301 tariffs, measures that have ended, trade remedies, Mexico's own decrees and the USMCA review 2,7,10.

Why does it matter?

Mexico reported US$545.4 billion of exports to the US in 2025 1. Most of that trade enters under USMCA, so origin claims and Section 232 lists decide what most shipments pay 2,4.

How does it work?

Each table gives the measure, what it does, the date it took effect, its legal basis or source, and its status on October 23, 2026. Tariffs and trade policy change often, so we review these pages every month and update them.

01How do the rules on one shipment fit together?

This page is the reference list for the whole corridor. Every brief and guide links here for the current rules. Facts on this page are as of October 23, 2026.

The stakes are large. Mexico reported US$545.4 billion of exports to the US in 2025, in UN Comtrade data 1. From January to May 2026, 88% of US imports from Mexico were USMCA-compliant, according to the Congressional Research Service 2.

For a single shipment, three checks set most of the US duty. First, does the good qualify under USMCA, and is the claim made at entry? Second, is its tariff line on a Section 232 list? Third, is it subject to a trade remedy, such as the antidumping order on fresh tomatoes 4,9,22? Our guide to US tariffs on Mexican goods works through these checks with examples, and our guide to USMCA rules of origin covers the certification of origin.

Duty is a cash cost. As general practice, the importer of record pays it at entry, before it sells the goods, so a tariff change alters the working capital a trade needs. The working capital guide in the Ossiano Trade Finance Guide explains how trade finance fills that gap.

  1. Classify the goodFind the 10-digit US tariff code. It sets the normal ad valorem duty and shows any Section 232 listing.
  2. Test and claim originUSMCA-qualifying goods entered with a claim are exempt from the 10% Section 301 tariff 4.
  3. Check Section 232Vehicles, parts, trucks, metals and listed chips pay the rate set by their proclamation or annex 10,17.
  4. Check trade remediesAntidumping orders, such as the one on fresh tomatoes, add their own duty 22.
  5. Pay at entryThe importer of record pays the duty when the goods clear customs.

02Which Section 232 tariffs apply to Mexican goods?

Section 232 tariffs stayed in force through every change in 2026 3,10. As of October 23, 2026, the rate depends on the proclamation or annex that lists the tariff line. Goods subject to Section 232 are excluded from the Section 301 tariff 4,6.

For steel, aluminum and copper, Proclamation 11032 took effect on June 8, 2026 and sets rates through December 31, 2027 10,11. A rate for steel or aluminum must name its annex: Annex I-A metal articles pay 50%, Annex I-B derivatives 25%, and Annex I-C machinery and Annex III HVAC derivatives a temporary 15% 11,12. USMCA relief on metals applies only to Annex I-C goods 11.

Vehicles and parts fall under Proclamation 10908, and medium and heavy trucks under Proclamation 10984 9,15. The rows below link the briefs where each measure matters most, including passenger cars, auto parts, trucks and wire and cable.

US measures

US Section 232 tariffs on goods from Mexico

Status as of October 23, 2026. Rates are additional US duties. Check each tariff line against its proclamation or annex.
MeasureWhat it doesSinceLegal basis or sourceStatus, Oct 23, 2026
Passenger vehicles and light trucks25%. USMCA-qualifying vehicles pay on non-US content once Commerce approves the content figure 9. Affects passenger cars.Apr 3, 2025Proclamation 10908, Mar 26, 2025, as amended 9In force
Auto parts25% on listed parts. USMCA-qualifying parts exempt until Commerce sets a process to tax non-US content 9. Affects auto parts; check engine and seat lines (gasoline engines, diesel engines, seats).May 3, 2025Proclamation 10908, as amended 9In force
Auto tariff offsetOffset of 3.75% of vehicle value for US-assembled vehicles, extended through 2030 15,16. Affects passenger cars and auto parts.Oct 17, 2025Truck proclamation of Oct 17, 2025 16In force
Medium and heavy trucks and truck parts25%. USMCA-qualifying truck parts duty-free until valuation is final 15. Affects trucks and diesel engines.Nov 1, 2025Proclamation 10984 15In force
Steel, aluminum and copper articles, Annex I-A50% on full value 10,11. Affects metal lines in wire and cable.Jun 8, 2026Proclamation 11032, signed Jun 1, 2026, amending Proclamation 11021 10In force through Dec 31, 2027
Metals derivatives, Annex I-B25% on full value 10,11. Check each line, for example in control panels and switches and connectors.Jun 8, 2026Proclamation 11032 10In force through Dec 31, 2027
Industrial machinery, Annex I-C (28 codes in Chapters 84 and 87)Temporary 15% 11,12.Jun 8, 2026Proclamation 11032 10In force through Dec 31, 2027
USMCA-qualifying Annex I-C goods from Mexico25% on non-US content only, with a total effective duty of at least 15%. The Bureau of Industry and Security defined "US content" in a notice of Oct 14, 2026 11,13.Jun 8, 2026; US content rule from Oct 14, 2026Proclamation 11032; BIS notice 10,13In force
Farm and residential HVAC derivatives, Annex IIITemporary 15% 11. May affect air conditioners.Jun 8, 2026Proclamation 11032 10In force through Dec 31, 2027
"Entirely US metal" thresholdLowered from 95% to 85% US content 11.Jun 8, 2026Proclamation 11032 10In force
Copper, first action50% on the copper content of semi-finished copper and derivatives. Since Jun 8, 2026, copper articles fall under the Proclamation 11032 annexes 10,14. Affects wire and cable.Aug 1, 2025Proclamation 10962, Jul 30, 2025, amended by Proclamation 11032 10,14In force
Semiconductors25% on a narrow list of advanced chips and their derivatives 17. Check lines in computers and servers and computer parts.Jan 15, 2026Proclamation signed Jan 14, 2026 17In force
Since June 8, 2026, Section 232 rates on steel, aluminum and copper depend on the annex: 50% for Annex I-A, 25% for Annex I-B and a temporary 15% for Annex I-C.

03Which other US measures are in force, and which have ended?

Three US tariff regimes changed in 2026. On February 20, 2026, the Supreme Court held in Learning Resources, Inc. v. Trump that the International Emergency Economic Powers Act (IEEPA) does not authorize tariffs. Collection of all IEEPA tariffs ended at 12:00 a.m. ET on February 24, 2026, which ended the former 25% IEEPA tariff on Mexican goods that did not qualify under USMCA 3. A temporary 10% surcharge under Section 122 ran from February 24 to its 150-day limit on July 24, 2026 3.

A Section 301 forced-labor tariff took effect at 12:01 a.m. ET on July 24, 2026, on 60 economies at 10% or 12.5%. Mexico is in the 10% group 6. The exemption depends on the entry: USMCA-qualifying goods entered with a USMCA claim are exempt 4,5. BBVA Research judged the direct impact on Mexico limited because of that exemption 5.

Two other US measures affect specific trades. The US$800 de minimis route is suspended for all countries 19. Imports of live cattle from Mexico, stopped on May 11, 2025 over New World screwworm, are restarting port by port 33,31; see our farm, food and drink brief.

US measures

Other US tariffs and border measures

Status as of October 23, 2026. Goods subject to Section 232 are excluded from the Section 301 tariff 4,6.
MeasureWhat it doesSinceLegal basis or sourceStatus, Oct 23, 2026
Section 301 forced-labor tariff10% on Mexican goods. USMCA-qualifying goods entered with a USMCA claim are exempt; Section 232 articles excluded 4,5,6. Affects every export brief, for example computers and servers.Jul 24, 2026, 12:01 a.m. ETSection 301, Trade Act of 1974; USTR final action notice dated Jul 23, 2026 6In force
IEEPA tariffsFormer 25% on Mexican goods that did not qualify under USMCA. The Supreme Court held that IEEPA does not authorize tariffs 3.Collection ended Feb 24, 2026Learning Resources, Inc. v. Trump, No. 24-1287, decided Feb 20, 2026 3Ended
Section 122 surchargeTemporary 10% global surcharge with a 150-day legal limit. Section 232 goods excluded 3.Feb 24, 2026Section 122, Trade Act of 1974 3Expired Jul 24, 2026
De minimis suspensionNo duty-free entry for shipments under US$800, for all countries. These shipments use informal or formal entry 19.Suspended Aug 29, 2025; rule effective Jun 24, 2026CBP rule, Federal Register, Jun 24, 2026 19In force
Live cattle imports, New World screwwormImports of Mexican cattle stopped, then reopening port by port: Douglas, Arizona (Aug 2026) and Santa Teresa, New Mexico (Sep 2026) 31. Affects farm exports.May 11, 2025USDA 33; Reuters 31Phased reopening

04Which trade remedy cases affect Mexican goods?

The main trade remedy in the corridor covers fresh tomatoes. The US Commerce Department withdrew from the 2019 suspension agreement, and an antidumping order took effect on July 14, 2025 22. The "all others" rate of 17.09% covers most Mexican producers, and company rates range from 2.81% to 273.43% 24.

On June 30, 2026, the US International Trade Commission (USITC) found no changed circumstances that would justify revoking the order, so the duty stays in force 23. Our farm, food and drink brief covers the tomato trade.

Trade remedies

US trade remedy case on fresh tomatoes from Mexico

Status as of October 23, 2026.
MeasureWhat it doesSinceLegal basis or sourceStatus, Oct 23, 2026
Antidumping order, fresh tomatoes17.09% "all others" rate for most Mexican producers; company rates from 2.81% to 273.43% 22,24. Affects farm exports.Jul 14, 2025US Commerce Department antidumping order 22In force
2019 tomato suspension agreementWithdrawn by the US Commerce Department, which let the antidumping order take effect 22.Ended Jul 14, 2025Commerce withdrawal from the agreement 22Ended
USITC changed-circumstances reviewFound no changed circumstances that would justify revoking the order 23.Jun 30, 2026USITC determination 23,24Order kept. Watch for administrative reviews or court appeals 24

05Which Mexican measures apply to imports?

Mexico raised its own tariffs in 2026. A decree published in Mexico's official gazette, the Diario Oficial de la Federación (DOF), on December 29, 2025 set rates of 5% to 50% on 1,463 tariff lines from January 1, 2026, for imports from countries without a trade agreement with Mexico 20,21. The US and Canada have one, USMCA, so the decree mainly affects inputs from other countries. Our guides to IMMEX and landed cost show how it reaches manufacturers and importers.

Mexico has also cut one duty for vehicle makers. A decree published on October 13, 2026 moved tariff line 9803.00.01, for vehicle-assembly parts imported by automakers with fiscal-warehouse authorization, from 10% to exempt for five years from October 14, 2026. The economy ministry had not published its guidelines as of October 18, 2026 8.

Other rules shape specific trades. A customs law reform took effect on January 1, 2026; our customs broker guide covers it 25. Fuel importers need a permit from the energy ministry, SENER 27,28; see our fuel import finance guide. A constitutional change requires corn grown in Mexico to be free of genetic modification 30; see our corn brief.

Mexican measures

Mexican measures on imports and trade

Status as of October 23, 2026. DOF: Diario Oficial de la Federación, Mexico's official gazette. Several texts were read through law firm or news summaries.
MeasureWhat it doesSinceLegal basis or sourceStatus, Oct 23, 2026
Tariff increase for countries without a trade agreementRates of 5% to 50% on 1,463 tariff lines, for imports from countries without a trade agreement with Mexico 20,21. Affects inputs under IMMEX and landed cost.Jan 1, 2026Decree, DOF Dec 29, 2025 20,21In force
Quota system for non-agreement importsAllowed by a transitional article of the December 2025 decree 21.PendingDecree, DOF Dec 29, 2025 21Under monthly review
Parts duty exemption, tariff line 9803.00.01Vehicle-assembly parts imported by automakers with fiscal-warehouse authorization move from 10% to exempt for five years 8. Affects auto parts and gasoline engines.Oct 14, 2026Decree, DOF Oct 13, 2026 8In force
Customs law reformProduction and repair records for special regimes; fines for unauthorized temporary imports of 250% to 300% of commercial value, up from 70% to 100% 25. See customs brokers.Jan 1, 2026Ley Aduanera reform decree, DOF Nov 19, 2025 25In force, with some transitional exceptions
Finished footwear removed from IMMEXHeadings 64.01 to 64.05 added to Annex I; these goods can no longer be imported temporarily under IMMEX 26.Aug 29, 2025Amendment to the IMMEX decree 26In force
Fuel import permitsA SENER permit is needed to import petroleum products. Permit holders report the origin and destination of fuel 27,28. Affects refined fuels and natural gas and LPG.Mar 18, 2025 (law); Oct 4, 2025 (regulation)Hydrocarbons Sector Law, DOF Mar 18, 2025, and its regulation 27,28In force
Restricted list of 68 hydrocarbon productsEntry only through designated customs points, with proof of need for the production process 29. Affects refined fuels.Oct 23, 2023Decree, DOF Oct 23, 2023 29In force
GM corn, constitutional amendmentCorn grown in Mexico must be free of genetic modification. The amendment does not directly address imports of GM grain 30. Affects corn.Mar 17, 2025Amendment to Articles 4 and 27 of the Constitution 30In force

06Where does the USMCA review stand?

USMCA stays fully in force. At the first six-year joint review on July 1, 2026, the US did not agree to renew the agreement in its current form. Annual joint reviews follow, and the agreement ends on July 1, 2036 unless the three countries confirm an extension, which they may do at any time 7.

The talks focus on autos. Reported US requests include regional value content near 82% and a 50% US-content rule; Mexico rejects a country-specific US content rule 8,9. No date for a fourth US-Mexico round had been announced as of October 18, 2026 8. Our rules of origin guide sets out the current tests, and our tier 1 and tier 2 supplier finance guide covers what the talks mean for parts makers.

USMCA

USMCA review and rules of origin

Status as of October 23, 2026.
MeasureWhat it doesSinceLegal basis or sourceStatus, Oct 23, 2026
First six-year joint reviewThe US did not agree to renew the agreement in its current form, which starts annual joint reviews 7.Jul 1, 2026USMCA Article 34.7 7Agreement fully in force; annual reviews under way
Term of the agreementUSMCA ends on Jul 1, 2036 unless the three countries confirm an extension, which they may do at any time 7.Jul 1, 2026USMCA Article 34.7 7In force
USTR public comments on the reviewComments from the public on the joint review 8.OpenUSTR, as reported by ICPA 8Due Jan 12, 2027
Fourth US-Mexico round on autosNext round of bilateral talks 8.PendingICPA tracker, Oct 18, 2026 8No date announced as of Oct 18, 2026
Auto rules of origin75% regional value content for vehicles and core parts; 70% of steel and aluminum bought in North America; 40% labor value content (45% for light trucks) at US$16 an hour or more 32. See rules of origin.Jul 1, 2020USMCA Chapter 4 and its appendix 32In force
Reported US requests on auto rulesRegional value content near 82% and a 50% US-content rule. Mexico rejects a country-specific US content rule 8,9. Affects auto parts and passenger cars.2026ICPA tracker; Baker Donelson 8,9Under negotiation. Not in force

07What should traders watch next?

The list below gives the next dated events, as of October 23, 2026. Proposed measures are not in force until an official text sets a date.

A rate change between order and delivery moves cost between buyer and seller. The Incoterms rule in the contract decides who pays duty; the Incoterms guide explains each one. Where a rule change adds risk to a new buyer or a large order, letters of credit or trade credit insurance can cover the payment side.

  • Oct 26, 2026Planned restart of Mexican cattle imports at Columbus, New Mexico, if conditions hold 31.
  • Nov 30, 2026Planned restart of Mexican cattle imports at Nogales, Arizona, if conditions hold 31.
  • PendingEconomy ministry guidelines for the 9803.00.01 parts duty exemption 8.
  • PendingFourth round of US-Mexico talks on autos. No date announced as of October 18, 2026 8.
  • PendingRefund process for IEEPA tariffs paid before February 24, 2026. Check the current status 3.
  • OpenSection 301 investigation into excess capacity. No rate set 2.
  • ProposedSection 232 derivative lists may expand by 14 product groups. Proposed in August 2026, not in force 18.
  • Jan 12, 2027Deadline for public comments to the US Trade Representative on the USMCA review 8.
  • Jul 1, 2027Reported date for the statutory repeal of the de minimis exemption 19.
  • Dec 31, 2027Temporary Section 232 metals rates under Proclamation 11032 run to this date 10.
  • Jul 1, 2036USMCA ends on this date unless the three countries confirm an extension. Annual reviews run until then 7.

Questions traders ask

Is USMCA still in force?

Yes. At the joint review on July 1, 2026, the US did not agree to renew it in its current form, so the agreement now goes through annual joint reviews. It ends on July 1, 2036 unless the three countries confirm an extension, which they may do at any time.

What tariff does a Mexican good pay in the US as of October 23, 2026?

A good that qualifies under USMCA and is entered with a USMCA claim pays no Section 301 tariff. A good that fails USMCA origin, or is entered without a claim, pays its normal duty plus 10% under Section 301. Goods on a Section 232 list pay the Section 232 rate instead of the Section 301 tariff, and antidumping orders, such as the one on fresh tomatoes, add their own rate.

Are the IEEPA tariffs on Mexico still collected?

No. The Supreme Court held on February 20, 2026 that IEEPA does not authorize tariffs, and collection of all IEEPA tariffs ended on February 24, 2026. Importers should check the current status of the refund process.

What is the Section 232 tariff on steel and aluminum from Mexico?

It depends on the annex that lists the tariff line. Under Proclamation 11032, in force from June 8, 2026 through December 31, 2027, Annex I-A metal articles pay 50%, Annex I-B derivatives 25%, and Annex I-C industrial machinery and Annex III HVAC derivatives a temporary 15%. USMCA-qualifying Annex I-C goods pay 25% on non-US content only, with a total of at least 15%.

Has Mexico raised its own tariffs?

Yes, for imports from countries without a trade agreement with Mexico. From January 1, 2026, rates of 5% to 50% apply on 1,463 tariff lines. The US and Canada have a trade agreement with Mexico through USMCA. Separately, Mexico made certain vehicle-assembly parts under tariff line 9803.00.01 duty free for five years from October 14, 2026.

Pricing a trade between Mexico and the US under these rules? Ossiano Capital works on trade finance in this corridor.

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Sources and notes

  1. UN Comtrade, annual trade data 2020 to 2025, all goods, Mexico and the US as reporters. Downloaded October 2026; 2025 figures may be revised. https://comtradeplus.un.org/
  2. Congressional Research Service, U.S.-Mexico Trade Relations (IF11175), August 13, 2026. https://www.everycrsreport.com/files/2026-08-13_IF11175_366b72c3fd2f3ebe10b28bf3feddca0088251bbb.html
  3. Perkins Coie, Supreme Court holds IEEPA tariffs unlawful, February 2026. https://perkinscoie.com/insights/update/supreme-court-holds-ieepa-tariffs-unlawful-president-trump-terminates-and-partially
  4. C.H. Robinson, New Section 301 forced labor tariffs now in effect, July 24, 2026. https://www.chrobinson.com/en-us/resources/insights-and-advisories/client-advisories/2026q3/07-24-26-client-advisory-new-section-301-forced-labor-tariffs-now-in-effect/
  5. BBVA Research, Section 301 tariffs, July 23, 2026. https://www.bbvaresearch.com/wp-content/uploads/2026/07/260723_aranceles_301_eng.pdf
  6. EY Tax News, USTR finalizes Section 301 forced labor tariffs on 60 economies, July 2026. https://taxnews.ey.com/news/2026-1607-ustr-finalizes-section-301-forced-labor-tariffs-on-60-economies-additional-tariffs-of-10-percent-or-125-percent-take-effect-24-july-2026
  7. White & Case, USMCA 2026 joint review: United States declines to extend agreement, July 2, 2026. https://www.whitecase.com/insight-alert/usmca-2026-joint-review-united-states-declines-extend-agreement-triggering-annual
  8. ICPA, USMCA joint review automotive tracker, October 18, 2026. https://www.icpainc.org/usmca-joint-review-automotive/
  9. Baker Donelson, Automotive trade risks escalate as USMCA review, Section 232 tariffs and AD/CVD actions converge, July 15, 2026. https://www.bakerdonelson.com/automotive-trade-risks-escalate-as-usmca-review-section-232-tariffs-and-adcvd-actions-converge
  10. The White House, Further adjusting the tariff regimes for imports of aluminum, steel and copper (Proclamation 11032), June 1, 2026. https://www.whitehouse.gov/presidential-actions/2026/06/further-adjusting-the-tariff-regimes-for-imports-of-aluminum-steel-and-copper/
  11. STR Trade Report, Section 232 tariffs on steel, aluminum and copper revised again, June 2026. https://www.strtrade.com/trade-news-resources/str-trade-report/trade-report/june/section-232-tariffs-on-steel-aluminum-and-copper-revised-again
  12. Thompson Hine SmartTrade, President modifies Section 232 tariffs on aluminum, copper and steel imports, June 2026. https://www.thompsonhinesmartrade.com/2026/06/president-trump-modifies-section-232-tariffs-on-aluminum-copper-and-steel-imports/
  13. Diaz Trade Law, note on the Bureau of Industry and Security notice defining US content for USMCA Annex I-C goods, October 15, 2026, as recorded in the corridor audit facts sheet of October 23, 2026.
  14. Thompson Coburn, Proclamation imposing 50% Section 232 tariffs on copper, August 2025. https://www.thompsoncoburn.com/insights/trump-administration-issues-proclamation-imposing-50-section-232-tariffs-export-controls-on-some-copper-scrap/
  15. BDO, New Section 232 tariffs on trucks and buses take effect; offset program extended through 2030, November 2025. https://www.bdo.com/insights/tax/new-section-232-tariffs-on-trucks-and-buses-take-effect-offset-program-extended-through-2030
  16. Butzel, New Section 232 tariffs on trucks, truck parts and buses; auto tariff offset expanded, October 21, 2025. https://www.butzel.com/alert-new-section-232-tariffs-on-trucks-truck-parts-and-buses-take-effect-november-1-but-the-auto-tariff-offset-expanded-to-support-suppliers
  17. The White House, Adjusting imports of semiconductors, semiconductor manufacturing equipment and their derivative products into the United States, January 14, 2026. https://www.whitehouse.gov/presidential-actions/2026/01/adjusting-imports-of-semiconductors-semiconductor-manufacturing-equipment-and-their-derivative-products-into-the-united-states/
  18. SteelOrbis, US proposes expanding Section 232 tariffs to 14 additional derivative product categories, August 11, 2026. https://www.steelorbis.com/steel-news/latest-news/us-proposes-expanding-section-232-tariffs-to-14-additional-derivative-product-categories-1470151.htm
  19. Federal Register, US Customs and Border Protection, Indefinite suspension of the de minimis exemption, June 24, 2026. https://www.federalregister.gov/documents/2026/06/24/2026-12670/indefinite-suspension-of-the-de-minimis-exemption-for-merchandise-arriving-through-all-modes-other
  20. Expeditors, Mexico increases import duties on countries without a free trade agreement (DOF December 29, 2025), checked October 23, 2026. https://info.expeditors.com/newsflash/mexico-increases-import-duties-on-countries-without-a-free-trade-agreement
  21. EY México, Tax Flash on new import duties, December 31, 2025. https://www.ey.com/content/dam/ey-unified-site/ey-com/es-mx/technical/tax/documents/ey-tax-flash-nuevos-aranceles-importacion.pdf
  22. Growing Produce, Tomato suspension agreement is officially over, July 2025. https://www.growingproduce.com/?p=176529
  23. Fresh Fruit Portal, USITC maintains antidumping duties on Mexican tomato imports, June 30, 2026. https://www.freshfruitportal.com/news/2026/06/30/usitc-tomato-mx/
  24. FreshPlaza, U.S. keeps antidumping duties on Mexican tomatoes, August 20, 2026. https://www.freshplaza.com/north-america/article/9864925/u-s-keeps-antidumping-duties-on-mexican-tomatoes/
  25. PwC México, Executive analysis of the decree reforming the Ley Aduanera, checked October 23, 2026. https://www.pwc.com/mx/es/impuestos/novedades-fiscales/decreto-reforma-diversas-disposiciones-ley-aduanera.html
  26. Forvis Mazars, New restrictions on temporary imports under IMMEX, September 8, 2025. https://www.forvismazars.com/mx/es/insights/forvis-mazars-en-mexico-lideres-de-opinion/tax-alert/nuevas-restricciones-en-importaciones-temporales
  27. Cámara de Diputados, Ley del Sector Hidrocarburos, reform history (DOF March 18, 2025), accessed October 23, 2026. https://www.diputados.gob.mx/LeyesBiblio/ref/lsh.htm
  28. Pérez-Llorca, Entrada en vigor del Reglamento de la Ley del Sector Hidrocarburos, October 2025. https://www.perezllorca.com/wp-content/uploads/2025/10/Nota-Juridica-Entrada-en-vigor-del-Reglamento-de-la-Ley-del-Sector-Hidrocarburos.pdf
  29. Factor Energético, SENER restringe importación de 68 productos derivados de hidrocarburos, October 26, 2023 (DOF decree of October 23, 2023). https://factorenergetico.mx/sener-restringe-importacion-de-68-productos-derivados-de-hidrocarburos
  30. Beveridge & Diamond, Mexico bans the cultivation of genetically modified corn, March 2025. https://www.bdlaw.com/publications/mexico-bans-the-cultivation-of-genetically-modified-corn-opening-door-for-other-restrictions-in-the-future/
  31. Reuters via GV Wire, USDA plans to resume imports of Mexican cattle at more ports of entry, October 20, 2026. https://gvwire.com/2026/10/20/usda-plans-to-resume-imports-of-mexican-cattle-at-more-ports-of-entry/
  32. Dickinson Wright, Summary of automotive provisions of USMCA. https://media.dwlaw.com/wp-content/uploads/2026/07/03153713/summary-of-automotive-provisions-of-usmca-1.pdf
  33. USDA, Phased reopening of Mexican cattle imports, 2025. https://www.usda.gov/node/64621

All facts on this page are as of October 23, 2026, the date of publication, and may have changed since. Rules and tariffs are as of October 23, 2026 and change often: check the corridor watch before you act.

About this page. Prepared for Ossiano Capital. People planned, researched, wrote and checked this page, using AI tools to help with research and checking. You are welcome to quote or reuse it: please credit Ossiano Capital and link to this page.

Shrinivas G https://www.mashedavocado.com
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