By Daniel Schwiebert

Commissioner Lea Márquez Peterson wrote Senators Kyrsten Sinema and Martha McSally on Friday to request they work with their colleagues to promptly ratify the United States-Mexico-Canada Agreement (USMCA). 

As a public utility commissioner serving on the Arizona Corporation Commission, Commissioner Márquez Peterson said, “I see the USMCA as providing net benefits for all signatories in the areas of energy, water, and telecommunications policy, which complement and support our push for a cleaner and more interconnected economy.” 

Specifically, Commissioner Márquez Peterson said she supports ratification of the USMCA because it contains several provisions that would strengthen the numerous physical, environmental, and economic interconnections that are already in place between Arizona and its energy, wastewater, and telecommunications partners to the south.

“As we begin to discuss building a more robust and interconnected regional grid in the west, we will necessarily need to consider how we connect and interact with our clean energy consumers and suppliers on both sides of the Arizona-Sonora border,” she said. “More access to transmission infrastructure between these two partners will provide benefits and clean energy opportunities for everyone, while promotion of electric vehicle charging and production by manufacturers and suppliers will help both neighbors as they strive to achieve shared air quality goals across the region.”

According to, a joint effort of Governor Doug Ducey’s Office and the Arizona-Mexico Commission, passage of the USMCA now would provide over 228,000 Arizona jobs and nearly $10 million dollars in exports to Canada and Mexico.

To learn more about the USMCA and how it benefits Arizona: 

For a copy of Commissioner Márquez Peterson’s letter to Senator Kyrsten Sinema:

For a copy of Commissioner Márquez Peterson’s letter to Senator Martha McSally:

Commissioner Lea Márquez Peterson
Twitter: @LeaPeterson

The Arizona Corporation Commission was established by the state’s constitution to regulate public utilities and business incorporation. The Corporation Commission is Arizona’s co-equal, fourth branch of government. The five Commissioners elected to the Corporation Commission oversee executive, legislative, and judicial proceedings on behalf of Arizonans when it comes to their water, electricity, telephone, and natural gas resources as well as the regulation of securities, pipeline, and railroad safety. To learn more about the Arizona Corporation Commission and its Commissioners, visit: