Hot Spot-IOGP JIP33 S-561 Subsea Wellhead and Tree Equipment Released for Public Comment

What is it?

IOGP JIP 33 have now released their revised supplementary specification S-561 Subsea Wellhead and Tree Equipment to API Spec 17D for public comment following the publication of AP17D 3rd edition in 2021.

The purpose of this specification is to define a minimum common set of supplementary requirements for the petroleum and natural gas industries relating to the procurement of subsea trees to API 17D. The draft specifications is attached but can also be downloaded by following the link S-561 Subsea Trees (API) - JIP33 (

BVAA members who are subsea valve and actuator manufacturers are invited to contribute to the revision process. If required, the BVAA will organise a Subsea TEG meeting to agree any collective comments proposed. Please contact the BVAA secretariat by 9th December 2022 if you have any comments on the draft which you think should be considered and raised by the association.

Alternatively, company specific comments should be entered on the IOGP JAMA system before 02nd January 2023. Instructions on providing feedback using JAMA can be found on the JIP33 Specification Development page.

Why is it Important?

This specification is important because it includes supplementary requirements for valves and actuators installed on subsea trees that will be adopted by 12 of the major subsea operators in the oil and gas industry. It is written as an overlay to API 17D 3rd edition following the same structure as the parent standard.

The specification includes specific supplementary requirements for valves, actuators and chokes including two valve related annexes devoted to qualification testing requirements. It is recommended that these annexes are carefully reviewed due to the significant costs incurred when qualifying subsea equipment.

Did we Miss Anything?

Hot Spots are intended to alert members and provide a brief overview of new standards, activities or procedures that are being introduced in the industry. If there is key information missing from this Hot Spot that would be helpful, please let the secretariat know so that we can improve our service for the future.

Please Note: This Hotspot is for information purposes, and we invite comments from BVAA members only. Please also note that at time of publication ballots may be closed. For more information, please contact the Secretariat.

BVAA Members: Did you know we have a hotspot tab on the BVAA website? Head over to and log into the member only area. You then need to select ‘Hotspots’ for the latest. For information on how to access the member only area of the website please contact

Published: 24th November 2022

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