Vottunarstofan Tún (or Tún) provides third-party independent verification of sustainability and chain of custody in five main areas:

• Organic agriculture and processing as defined in Icelandic regulation 74/2002, based on European Union (EU) regulation 2092/91. See also section on National and International Recognition.
• Processing of organic ingredients as defined in standards set by Tún for production outside the remits of the EU organic regulations, such as food catering and cosmetics (standards document and other information available from Tún, tun@tun.is).
• Sustainable harnessing of natural resources, including production of inputs permitted in organic farming and processing, as defined in standards set by Tún, such as production of calcified seaweed, salt, food supplements of marine origin, eiderdown, fishmeal and fishoil (standards document and other information available from Tún, tun@tun.is).
• Sustainable fisheries as defined by standards set by the Marine Stewardship Council (MSC).

Chain of Custody of fish from sustainable fisheries as defined by standards set by the Marine Stewardship Council (MSC).