A sample issue
What you receive, at most twice a month.
This is what an issue of What's Changing looks like. It is built from the three most recent entries on What's Changing, so it is always a real issue. It goes out at most twice a month, and only when something moves.
Subject: What's Changing in Mexico · 28 July 2026
US replaces struck-down tariffs with a 10 percent Section 301 duty
Source: Federal Register, 91 FR 47318, document 2026-15181 (USTR). Industries: Exporters from Mexico to the United States. Book 2 reference: Chapter 3. Checked 11 October 2026.
USMCA first joint review: no extension, annual reviews begin
Source: Office of the US Trade Representative, statement on the USMCA joint review. Industries: All industries. Book 2 products: all fifteen. Book 2 reference: Chapter 3. Checked 11 October 2026.
New label standard for medical devices published
Source: Diario Oficial de la Federación, via SIDOF (Secretaría de Gobernación). Industries: Dental and medical, Health, pharmacy and OTC. Book 2 products: Dental equipment and supplies. Book 2 reference: Chapter 11. Checked 11 October 2026.
Every entry gives the date the rule was published, the date it takes force and its official source. Every issue has a one-click way out.
What's Changing, by email
A dated note when a rule, tariff, wage or figure that matters to doing business in Mexico changes. At most twice a month, and only when something moves. The free Mexico Pack comes with it.