The State of Play After INC-5.3

This policy brief by the Center for International Environmental Law (CIEL) analyzes the status of the global plastics treaty following the Intergovernmental Negotiating Committee's fifth session (INC-5.3) in February 2026. It specifically evaluates the 'start-and-strengthen' approach—a model where a treaty is adopted with core obligations and progressively enhanced through future decisions—contrasting it with 'bottom-up' models based on voluntary national actions. The brief examines three draft texts from the Chair and various member state proposals, arguing that for a start-and-strengthen model to succeed, the treaty must include legally operative objectives, periodic effectiveness evaluations, and a procedural path for normative evolution, such as voting mechanisms to avoid deadlocks.

• Following INC-5.3, the treaty text from INC-5.1 in Busan remains the most current version approved by the Committee, as two subsequent draft texts introduced by the Chair during INC-5.2 were rejected by delegations.
• A 'start-and-strengthen' approach aims to secure broad participation by adopting a treaty that is enhanced over time via Conferences of the Parties (COPs), but its success requires embedding core enforceable obligations and structural elements from the start.
• The 'start-and-strengthen' model differs from 'bottom-up' models; while the former operates within a collectively agreed framework to build trust and coordination, the latter relies on voluntary or nationally determined measures that risk regulatory fragmentation and collective shortcomings.
• The brief identifies three essential elements for a successful start-and-strengthen architecture: a legally operative treaty objective with enforceable obligations, a pathway for effectiveness evaluation (distinct from implementation monitoring), and a procedural path for normative evolution through amendments, annexes, or protocols.
• Analysis of the Chair's draft texts reveals a trend toward weaker legal obligations; the August 13 draft contained very few global binding obligations, and the August 15 draft relied on qualified language such as "as appropriate" and "in accordance with its national circumstances," which the brief argues facilitates a bottom-up approach.
• The brief warns that relying on National Action Plans (NAPs) alone is insufficient if the treaty lacks shared binding commitments, mandatory update timelines, adequate financial support, transparency requirements, and review mechanisms.
• To avoid operational limbo, the brief emphasizes the need for COP decision-making mechanisms that allow for voting when consensus is impossible, noting that formal amendments to multilateral environmental agreements can take decades to enter into force, as seen with the Basel Ban amendment which took roughly 24 years.

APA

Center for International Environmental Law (2026). The State of Play After INC-5.3. https://www.ciel.org/wp-content/uploads/2026/02/The-State-of-Play-After-INC-5.3-Assessing-the-Start-and-Strengthen-Approach.pdf

Chicago

Center for International Environmental Law. The State of Play After INC-5.3. 2026. https://www.ciel.org/wp-content/uploads/2026/02/The-State-of-Play-After-INC-5.3-Assessing-the-Start-and-Strengthen-Approach.pdf.

Wikipedia

{{cite report |author=Center for International Environmental Law |title=The State of Play After INC-5.3 |date=February 2026 |url=https://www.ciel.org/wp-content/uploads/2026/02/The-State-of-Play-After-INC-5.3-Assessing-the-Start-and-Strengthen-Approach.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{centerforinternationalenvironmentallaw2026state, author = {{Center for International Environmental Law}}, title = {{The State of Play After INC-5.3}}, institution = {Center for International Environmental Law}, year = {2026}, month = feb, url = {https://www.ciel.org/wp-content/uploads/2026/02/The-State-of-Play-After-INC-5.3-Assessing-the-Start-and-Strengthen-Approach.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }