To become an Eco Diocese, a Diocese must meet the following criteria:
- Register its intent.
- Appoint an individual or group to coordinate progress.
- Write an environmental policy.
- Have a certain percentage of churches in the Diocese registered and awarded Eco Church status.
- Achieve Eco Church status for its Diocesan House or Office.
- Embed environmental issues into its ministerial education.
- Manage Diocesan investments ethically.
- Work collaboratively with other Dioceses and faith groups.
- Establish a habit of recording and celebrating environmental achievements.
There are currently 18 Dioceses who have been awarded Eco Diocese status: Birmingham, Bristol, Canterbury, Coventry, Europe, Gloucester, Guildford, Leeds, Liverpool, Llandaff, Manchester, Oxford, Southwark, Southwell & Nottingham, St Asaph, St Edmundsbury & Ipswich, Swansea & Brecon, and Winchester.