This Practice Note discusses the EU environmental social governance (ESG) (also referred to as sustainability) integration measures, which amended delegated acts under the Alternative Investment Fund Managers Directive 2011/61/EU (AIFMD), the Undertakings for Collective Investments in Transferable Securities (UCITS) Directive 2009/65/EC and the recast Markets in Financial Instruments Directive 2014/65/EU (MiFID II), including impact on the industry. It also briefly flags the UK’s divergence with regards to these measures.