This Practice Note provides guidance on section 11 of the Criminal Finance Act 2017 (CFA 2017), which amends the Proceeds of Crime Act 2002 (POCA 2002) to make provision for voluntary information sharing within the regulated sector, and between those bodies and the National Crime Agency (NCA), in connection with suspicions of money laundering. It explains voluntary disclosures, required notifications and disclosure requests and who they apply to. It also considers joint disclosure reports, or superSARs, as well as considerations of confidentiality, good faith and what the effect of the new provisions for required disclosure is on existing failure to disclose offences. Finally, it sets out some practical guidance on what to do on receipt of a voluntary disclosure request or a request from an NCA officer.