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Why ASC?

We set the standard for seafood. If you see the ASC label on pack, you can be sure that your seafood was farmed with care.

Our impact

By choosing ASC labelled seafood, you are making a proven, positive impact on people and the planet.

Get involved

Which seafood will you choose for dinner? We've got some suggestions.

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Join the most recognised certification programme as proof of your responsible farming practices to a global audience.

Our impact

ASC creates measurable positive change in global seafood farming.

Find out more

The ASC programme is successful because of all producers and partners involved. Read our reports and stories.


Join the most recognised certification programme and benefit from trading ASC certified seafood.

Our impact

ASC creates measurable, positive change in global seafood farming.

After certification

In addition to accessing our global network of secure and flexible supply, ASC partners benefit from marketing their ASC certified seafood.

The bivalve standard

Bivalve farmers face a number of issues in bringing their clams, oysters, mussels and scallops to market. With ASC certification, bivalve farmers evidence their contributions to responsible labour practices, disease management, and ecosystem conservation.

ASC sets the standards for environmentally and socially responsible bivalve farming.

Certified farms actively minimise their impact on the surrounding natural environment.

Certified farms operate in a socially responsible manner, care for their employees and work with the local community.

ASC certification gives farms clear guidelines to follow. The Bivalve Standard helps protect farms against these issues:


ASC certified bivalve farms minimise impacts on the local ecosystem in a number of ways, such as ensuring that farms are not sited in areas with key biological or ecological functions. Farms must implement environmental management plans to ensure that they are not adversely affecting the ecological integrity of the area in which they are located. No harm to threatened or endangered species or their habitats is allowed.


ASC certified bivalve farms are required to manage the organic deposits on the sediment beneath the farm in a responsible manner. Sulphide levels in the sediment need to be measured at regular intervals and remain within set limits.


ASC certified bivalve farms must adhere to rigorous requirements to minimise disease outbreaks. Certified farms are not allowed to use harmful pesticides. If chemicals are used, only those that do not harm the marine environment are permitted. Farms must also ensure that actions to prevent diseases do not cause harm to endangered species or have a permanent impact on critical habitats.

Wild seed collection

ASC certified bivalve farms that use wild seed must procure the seed from well-regulated natural resources.


ASC certification imposes strict requirements based on the core principles of the International Labour Organisation (ILO), these include prohibiting the use of child labour or any form of forced labour. All ASC certified farms are safe and equitable working environments where employees earn a decent wage and have regulated working hours.

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