The ProActive Vessel Register (PVR) is one of four public vessel lists that ISSF provides to foster transparency in tuna fishing. Fishing vessels can register on the PVR to show how they are following best practices that support sustainable tuna fisheries. There is no cost to register on the PVR, although some vessels may have costs associated with audits (see audit manuals under Audit tab below).

Transparency Tool for Sustainable Seafood

The PVR is a verified resource for sustainable-fishing stakeholders — including seafood buyers, who can consult the PVR to research vessels and make informed sourcing decisions. The PVR vessel list can be searched and filtered by vessel name, type, flag, and other characteristics — and also downloaded in CSV format.

To track compliance with sustainable-fishing best practices, ISSF and MRAG Americas annually audit vessels on the PVR, using gear-specific audit protocols. We also maintain a list of vessels that have been de-listed from or re-listed on the PVR.

PVR Application Process

Vessel owners interested in having their vessels listed in the PVR must complete our application process. Some vessels may want to apply to be listed on both the PVR and the VOSI (Vessels in Other Sustainability Initiatives) public lists. The PVR application process is separate from the VOSI application process.

Join the PVR

PVR Vessel List

Browse, search, and sort vessel data in the PVR, or download a CSV copy of the whole PVR list to your desktop.





The PVR list includes different vessel types — Purse Seine (PS), Longline (LL), or Other (which includes Pole & Line, Handline, Troll and Supply & Tender) — whose owners have indicated they are following best practices for sustainable tuna fishing.

Using the PVR

You can search and filter the PVR by vessel name, UVI number, RFMO region, and many other characteristics. Hover your cursor over column headings to see brief descriptions of the column categories. You also can view historical data on a vessel by clicking the “History” symbol next to the vessel name.

You will see these symbols in vessel records in the PVR:

Green checkmark means the vessel implements the PVR measure
Red X means the vessel does not implement the PVR measure
Circle symbol means the vessel’s implementation of a PVR measure is currently pending
N/A means the column is Not Applicable to the vessel
An n-dash (–) means the PVR best practice does not need to be implemented by that vessel type
Clicking the history button will show historical data for a vessel’s changes on the PVR

Information for Vessel Owners

Vessel owners who want to list vessels on the ProActive Vessel Register must:

ISSF maintains a list of vessels that have been delisted from or relisted on the PVR.

Resources for Best Fishing Practices

As part of our commitment to help vessel owners achieve their sustainable fishing goals, ISSF offers a variety of online resources for fishers, including guidebooks, videos, infographics, and posters.

Skippers Guidebooks for purse seine, longline, and pole-and-line crews are available at our Guidebooks site. They address sustainability, bycatch, and fisheries management.


Frequently Asked Questions

What is the PVR? The ProActive Vessel Register (PVR) is an effective way for vessel owners to identify themselves as active participants in meaningful tuna sustainability efforts.  The PVR provides validated information to tuna purchasers and interested stakeholders about the positive steps each vessel is taking in implementing specific best practices designed to improve responsible practices in tuna fishing.
Proactive Vessel Register

Why should I list my vessel on the PVR? The PVR is the most effective mechanism currently available that transparently identifies – among the vast and disparate global tuna fishing fleet – those individual vessels that are implementing science-based, sustainable tuna fishing practices.  By tracking compliance by individual vessel – validated through third-party auditing – the PVR offers all interested stakeholders with the credible information to inform their programs, procurement and decisions.

In support of the PVR, all ISSF Participating Companies committed to register all controlled purse seine tuna vessels fishing for skipjack, yellowfin and bigeye tuna and to maintain such registration indefinitely. Further, ISSF adopted ISSF Conservation Measure 7.3, which provides that processors, traders, importers, transporters and others involved in the seafood industry shall, if purchasing skipjack, yellowfin and bigeye tuna from large-scale purse seine vessels, for all trips beginning on or after January 1, 2016, ensure that 100% of those vessels are on the PVR.

What is the role of ISSF for the PVR? The International Seafood Sustainability Foundation (ISSF) created the PVR. Although ISSF administers and maintains the PVR, it does not endorse any listed vessel. The information on the PVR is audited by an independent third-party auditor.

Who is eligible to be on the PVR? ISSF Conservation Measure 7.2 explicitly provides that that a large-scale purse seine vessel not on the ISSF Record of Large-Scale Purse Seine Vessels will not be eligible for listing on the PVR. All other vessels fishing for tuna can be listed on the PVR, regardless of the gear used or market supplied.

Does my vessel have to be compliant with every best practice on the PVR before applying or remain listed on the PVR? No, the vessel can be listed on the PVR, but the status will be shown as a red X.

Can small scale coastal fisheries meet the requirements for listing on the PVR? Yes, all vessels and gear types are eligible.

Do I have to list my vessel on the PVR? If your vessel supplies an ISSF Participating Company, that company may require that you list your vessel on the PVR. Currently, any large-scale purse seine vessels that ISSF participating companies source from must be on the PVR.

How is compliance with the PVR elements determined?  The PVR identifies compliance or non-compliance with specific best practices as determined by independent, third-party audits. MRAG Americas, a leading fisheries consultancy, conducts a comprehensive scheme of audits according to defined Audit Protocol by gear type: Purse Seine; Longline; Pole & Line, Handline and Troll; and Supply & Tender Vessels.

Can vessels that are removed from the PVR ever be relisted on the PVR?  Read about ISSF procedures for delisting (removing) and relisting vessels on the Register. We also maintain a public list of all delisted and relisted vessels.

What do the symbols on the PVR mean?  The symbols on the PVR provide the following information based on audit results:

A green checkmark means the vessel implements the best practice.

A red mark means that the vessel does not implement the best practice.

A circle symbol means the vessel’s implementation of a best practice is currently pending verification or further action, subject to the time limits contained in the PVR Terms and Conditions. Purchases from a vessel “in process” may result in a non-conformance finding for an ISSF Participating Company during a subsequent MRAG audit unless the purchaser obtains proof of implementation directly from the vessel.

“N/A” means the best practice is not applicable.

An n-dash means the best practice does not need to be implemented by that vessel type.

The history button shows historical data for a vessel’s changes on the PVR.

What best practices resources are available? ISSF provides several resources, including in-person workshops, online guidebooks for skippers on purse seine and longline vessels and observers on purse seine vessels translated into various languages, an online video of an ISSF Skippers Workshop and other resources.

Is there a fee to join the PVR? No.

Who is required to participate in best practices education? All skippers and others in leadership roles directing the fishing operations onboard large-scale and small-scale purse seine vessels are required to attend a workshop, complete the online Guidebook or view the online video. (Skippers of very small-scale purse seine vessels, below 30 GT, are currently exempt from this requirement, but are encouraged to review the material.)

Attendance at an in-person workshop is recorded by the ISSF-approved trainer; persons completing the online Skipper Guidebook, or viewing the online video must complete and submit the Certificate of Completion provided with the Guidebook and video.

How can you support the PVR?

Vessel Owners:  Owners of vessels that fish for tuna – regardless of gear type – can list their vessels on the PVR to publicly signify their ongoing commitment to sustainable fishing practices.

Retailers: Retailers interested in supporting or implementing sourcing requirements for sustainable tuna can encourage their suppliers to source tuna from vessels that are listed on the PVR.

Environmental Stakeholders: Those stakeholders with industry relationships can encourage vessels to register on the PVR, either directly or by encouraging their retail partners to do so.




March 2020: Download the “Notice to the ISSF Participating Companies and Vessels listed on the ProActive Vessel Register: Audit Protocol Override due to COVID-19.”

All vessels applying to be on the PVR agree to undergo regular auditing. Level 1 audits are conducted by ISSF and assess the vessel attributes and other details that are required as part of the application. Level 2 and 3 audits are conducted by MRAG Americas on a sample of PVR vessels as a means of verifying that vessels have and continue to meet the ISSF Commitments. This provides for effective, transparent and credible verification that ISSF Commitments are being met. Level 2 and 3 audits are conducted independent of ISSF.

Download the PVR Public Audit Manual by gear type: Purse Seine; Longline; Pole & Line, Handline and Troll; and Supply & Tender Vessels.


Application Process

Vessel Application Form Email us ISSF Record of Large-Scale Purse Seine Vessels ISSF Conservation Measures on Capacity Reduction Email us CM 3.1a CM 3.5 CM 3.7 CM 3.6