Officials touted auto industry provisions in the new agreement that they said would return “billions of dollars of production” to the United States, improved access to Canadian dairy markets, and a review every six years that would prevent the new agreement from becoming outdated.

The treaty also addressed e-commerce with new intellectual property protections, including decade-long patents for biologic drugs.

“Everything we’re doing is designed to lead to higher incomes, higher wages, and a higher standard of living for Americans,” said one senior administration official, who insisted upon anonymity to brief reporters.

The deal also includes stronger protections for labor rights, the environment and intellectual property than did Obama-era trade deals, the official said.