Minimising Quarantine and Pre-shipment (QPS) Uses of Methyl Bromide: Tools for Controlling, Monitoring and Reporting

This publication is a technical guide developed by the United Nations Environment Programme (UNEP) under the OzonAction Programme. It addresses the critical issue of minimizing the quarantine and pre-shipment (QPS) uses of methyl bromide—a potent ozone-depleting substance exempted from phase-out under the Montreal Protocol. Recognizing the environmental risks of continued QPS use, the document offers detailed tools for identifying, controlling, monitoring and reporting such applications. It outlines the legal definitions, global consumption trends, and the role of international standards such as ISPM-15. A wide range of alternative treatments are presented alongside recommendations for national licensing, compliance strategies, and stakeholder engagement. This publication is an essential resource for National Ozone Units, plant quarantine officers, fumigation service providers and policy actors, supporting the transition toward safer, sustainable phytosanitary practices while ensuring continued compliance with international obligations.