Vessel & Company Commitments
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Conservation Measures
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ISSF's Role
Our conservation measures help seafood companies make sustainability a central part of how they do business.
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Our Conservation Measures
We develop conservation measures to help seafood companies and vessels improve the sustainability of tuna fisheries.
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Report a Compliance Issue
Use this form to contact ISSF about a compliance concern.
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Participating Companies & Compliance
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Participating Companies
ISSF participating companies include tuna processors, traders, and marketers worldwide.
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Audit Process
Through third-party auditing, we report on participating companies’ compliance with ISSF conservation measures.
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Compliance Report
Download our PDF report tracking participating companies’ and PVR vessels’ compliance with ISSF conservation measures.
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Participating Company Audit Reports
We publish compliance reports tracking conformance with ISSF conservation measures for each ISSF participating company.
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Data Check Companies
ISSF Data Check Companies commit to conform to, and be audited on, a more limited set of conservation measures.
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PROACTIVE VESSEL REGISTER (PVR)
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ProActive Vessel Register (PVR)
Fishing vessels can be registered on the ProActive Vessel Register (PVR) to show how they are following sustainability best practices.
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ProActive Vessel Register (PVR) List
Learn about vessels worldwide that are registered on ISSF’s PVR.
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Apply to the PVR
Find out how to apply to have vessels listed on the PVR.
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PVR Auditing Process
Vessels listed on the PVR undergo regular auditing to verify their compliance with ISSF conservation measures.
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PVR FAQs
Find answers to common questions about the PVR.
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Terms of PVR Participation
Read the terms and conditions that govern vessel listing on the PVR.
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Vessels in Other Sustainability Initiatives (VOSI)
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Vessels in Other Sustainability Initiatives (VOSI)
VOSI lists vessels that have made certain sustainability commitments beyond those reflected on the ProActive Vessel Register (PVR).
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Vessels in Other Sustainability Initiatives (VOSI) List
Each record on the VOSI list, which is verified through a third-party audit process, includes the vessel UVI number, vessel flag, vessel type, and other details.
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Apply to the VOSI
Vessels of all gear types that have made certain sustainability commitments beyond those reflected on ISSF’s PVR are eligible to be listed on the VOSI.
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VOSI Auditing Process
Audits of vessels listed in the VOSI are carried out remotely and organized on two levels to ensure auditing goals are met.
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Other Vessel Lists
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Public Vessel List Overview
In addition to the PVR, ISSF maintains three other public vessel lists.
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Record of Large-Scale Purse Seine Vessels
Our Record of Large-Scale Purse Seine Vessels (LSPSR) lists large-scale, tropical-tuna purse-seine vessels worldwide.
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Tuna Vessel IMOs and Other UVI Numbers
International Maritime Organization (IMO) numbers and Unique Vessel Identifiers (UVIs) assist in vessel identification.
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