By September 2018 a total of 31 countries have adopted the IHRA definition of anti-Semitism, as well as more than 130 UK local councils, the police, the Crown Prosecution Service and the judiciary. In September 2018 it was adopted by the Council of Bishops of the Church of England, and on 3rd October 2018 by the PCC of St Martin's Potternewton. The definition was an offshoot of one created in 2005 by the European Union's Monitoring Centre for Racism and Xenophobia, then the EU's leading anti-racism body. When EU directives changed the role of the agency, it no longer promoted the definition, and the IHRA stepped into the breach.
The IHRA definition specifies eleven "contemporary examples of anti-Semitism", while making it clear that there may be others.