WASHINGTON—The North American Free Trade Agreement has proven to be a resounding success for U.S. manufacturing, according to a new report from the Manufacturers Alliance for Productivity and Innovation.

WASHINGTON, DC—Tomorrow marks the 20-year anniversary of NAFTA’s implementation, and there is strong evidence of the pact’s positive impact on U.S. manufacturing. Since 1993, value-added manufacturing here has expanded from $1.06 trillion to $1.87 trillion in 2012.