ASEAN Ministerial Meeting on Environment (AMME) is a sectoral ministerial body listed under Annex 1 of the ASEAN Charter. Established in 1981, AMME now meets once every two years to provide policy and strategic guidance related to ASEAN cooperation on environment. 

AMME is assisted by ASEAN Senior Officials on Environment (ASOEN), who meets annually, and provide strategic guidance in advancing ASEAN cooperation on environment. The chairpersonship of ASOEN is rotated among ASEAN Member States alphabetically every 2 years.

Under the ASOEN, subsidiary thematic Working Groups lead the technical and operational implementation of their respective Working Group Action Plans. There are seven (7) working groups to oversee the priority areas of ASEAN environmental cooperation. The Working Groups are chaired by an ASEAN Member State based on expression of interest, with a tenure of 3 years:

• ASEAN Working Group on Nature Conservation and Biodiversity (AWGNCB)
• ASEAN Working Group on Coastal and Marine Environment (AWGCME) 
• ASEAN Working Group on Water Resources Management (AWGWRM)
• ASEAN Working Group on Environmentally Sustainable Cities (AWGESC) 
• ASEAN Working Group on Climate Change (AWGCC) 
• ASEAN Working Group on Chemicals and Waste (AWGCW) 
• ASEAN Working Group on Environmental Education (AWGEE) 

The AWGNCB is supported by the ASEAN Centre for Biodiversity (ACB) which facilitates cooperation and coordination on the conservation and sustainable use of biological diversity in the region. ACB is overseen by a Governing Board which consists of the members of the ASOEN and the Secretary-General of ASEAN.

The working groups also provide support to relevant cross-sectoral issues beyond the environment sector such as on the issues of drought, climate resilience, forestry, single-use plastics, etc. 

In supporting collaboration in sustainable development and greening the regional economy, the ASEAN Institute for Green Economy (AIGE) was launched under the leadership of Myanmar in 2014. The AIGE is to serve as a centre of excellence on green economy through capacity building, fostering research, catalysing and facilitating green technologies, improving management practices and promoting national and international cooperation.

Also listed under Annex 1 of the ASEAN Charter is the Conference of Parties to the ASEAN Agreement on Transboundary Haze Pollution (COP), consisting of the ASEAN Ministers responsible for environment. The two sectoral ministerial bodies, e.g. AMME and COP, operate under their respective mandates. However, the cross-cutting nature of their work mutually reinforces each other in implementing environment-related aspects of the ASCC Blueprint 2025.

The environment sector also regularly meets with dialogue/development partners to strengthen partnership and explore collaboration through, among others, ASEAN-Japan Dialogue on Environmental Cooperation (AJDEC), ASEAN-EU High-Level Dialogue on Environment and Climate Change, ASEAN Plus Three Senior Officials Meeting (APT SOME), ASEAN Plus Three Environment Ministers Meeting (APT EMM), East Asia Summit Environment Ministers Meeting (EAS EMM), and partnership conferences on thematic areas of cooperation such as climate change or marine debris pollution.