This report outlines key aspects of the current state of international enforcement co-operation between competition authorities. It builds on a 2012 survey by the two organisations that resulted in two separate reports, one from the OECD and one from the ICN. The report contains a description of the drivers of international enforcement co-operation, a high-level review of main OECD and ICN initiatives to support international enforcement co-operation, the results and analysis of the survey conducted of OECD and ICN members in 2019 and comparisons with the 2012 survey results. More materials at https://www.oecd.org/competition/oecd-icn-report-on-international-cooperation-in-competition-enforcement-2021.htm.