The National Assembly for Wales and the Welsh Government are responsible for 21 subject areas, which have been devolved to Wales by the UK Parliament. They are:
- Agriculture, Forestry, Animals, Plants and Rural Development
- Ancient Monuments and Historic Buildings
- Culture
- Economic Development
- Education and Training
- Environment
- Fire and Rescue Services and Fire Safety
- Food
- Health and Health Services
- Highways and Transport
- Housing
- Local Government
- National Assembly for Wales
- Public Administration
- Social Welfare
- Sport and Recreation
- Devolved taxes
- Tourism
- Town and Country Planning
- Water and Flood Defence
- Welsh Language