This addendum is supplementary to the Practical guide to the Combatingof money laundering & terrorism financing 2019.In 2020 a number of changes were introduced to legislation which havean influence on the theory contained in this book. This addendum dealswith these changes and adds clarification where necessary. The addendumincludes references to the relevant chapters and pages of the Practicalguide to the Combating of money laundering & terrorism financing 2019.Besides this, this addendum also includes information based on recentsocietal developments.