Under section 6 of the Environment (Wales) Act 2016, public authorities that exercise their functions in relation to Wales have a duty to maintain and enhance biodiversity and promote the resilience of ecosystems. In compliance with the Act, Powys Teaching Health Board (PTHB) maintains a Biodiversity Action Plan which is part of PTHB’s environment management system accredited to ISO14001 (2015). This standard ensures a robust and transparent environmental management at the core of its business.