From the Document: "As a member of the World Trade Organization (WTO) agreements, the United States has committed to abide by WTO rules and disciplines, including those that govern domestic farm policy as spelled out in the Agreement on Agriculture (AoA). Since establishment of the WTO on January 1, 1995, the United States has complied with its WTO spending limits on market-distorting types of farm program outlays (referred to as amber box spending). However, the addition of large, new trade assistance payments to producers in 2018 and 2019, on top of existing farm program support, has raised concerns by some U.S. trading partners, as well as market watchers and policymakers, that U.S. domestic farm subsidy outlays might exceed the annual spending limit of $19.1 billion agreed to as part of U.S. commitments to WTO member countries. CRS [Congressional Research Service] analysis indicates that the United States probably did not violate its WTO spending limit in 2018 but could potentially exceed it in 2019."
CRS Report for Congress, R45940
Congressional Research Service: https://crsreports.congress.gov/