Please demonstrate that it is a valid piece of evidence to support your case. Show me that it has, as you say, been agreed and endorsed by the member nations.

the most widely used definition of contemporary antisemitism is the Working Definition produced in 2005 by the European Union Monitoring Centre on Racism and Xenophobia (EUMC), an EU body which monitors racism and antisemitism in EU Member States (the EUMC has since been succeeded by the European Union Agency for Fundamental Rights (FRA)).

In 2005, the EU Monitoring Centre on Racism and Xenophobia (EUMC), now the EU Agency for Fundamental Rights (FRA), adopted a "working definition on antisemitism" which is now the standard definition used around the world, from the European Parliament, to the UK College of Policing, to the US Department of State.

The (US)State Department report on Global Antisemitism in 2008 included the following: The EUMC's working definition provides a useful framework for identifying and understanding the problem and is adopted for the purposes of this report
The Working Definition of Antisemitism was cited by the US State Department's Special Envoy to Monitor and Combat Anti-Semitism in testimony given to the Commission on Security and Cooperation in Europe (in Helsinki) in 2011, and is currently endorsed on the State Department's 'Monitoring and Combating Antisemitism' page.
The Working Definition of Antisemitism was endorsed by the London Declaration of the Inter Parliamentary Coalition for Combating Antisemitism in 2009.
In 2010, the UK All-Party Inquiry into antisemitism recommended that the Working Definition of Antisemitism should be adopted and promoted by the Government and law enforcement agencies.
The UK National Union of Students renewed their support for the Working Definition of Antisemitism in 2013.
An official document published by the OSCE's Office for Democratic Institutions and Human Rights (ODIHR) recommends the Working Definition of Antisemitism as a valuable hate crime data collection tool for law enforcement agencies, and for educators.
The OSCE (Organization for Security and Co-operation in Europe )Parliamentary Assembly has formally recognized the Working Definition of Antisemitism.
The professional body in the UK for policing now includes the definition in their Hate Crime Operational Guidance (2014).

See also Bobad's report "
The Ottawa Protocol, comprised of 250 parliamentarians from 46 countries reaffirmed the EUMC working definition of Antisemitism at a conference in Ottawa in November, 2010."