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Aquaculture Stewardship Council Certification

Aquaculture Stewardship Council Certification: Verifies responsible farmed seafood production and chain of custody

Maílis Carrilho
Written by Maílis Carrilho
Updated on September 6th, 2026

Summary

Aquaculture Stewardship Council Certification is a voluntary global certification program for responsible farmed seafood. The ASC Farm Standard sets requirements for aquaculture grow-out farms covering animal welfare, farm management, human rights and environmental stewardship. Once certified product leaves the farm Unit of Certification, each company in the supply chain that owns ASC-certified product must hold valid ASC Chain of Custody certification, using the MSC Chain of Custody Standard plus the ASC CoC Module. ASC is voluntary unless required by buyers, procurement, retailers or sourcing policies. It does not replace aquaculture licenses, environmental permits, food safety, labor, animal health or import rules.

Details

Jurisdictions
  • Global
Mandatory for

ASC is not legally mandatory.

It can become practically required where:

A retailer requires ASC-certified seafood.
A foodservice buyer requires certified farmed seafood.
A procurement process references ASC.
A brand commits to responsible aquaculture sourcing.
A buyer contract requires ASC Chain of Custody.
A sustainability sourcing policy requires ASC.

Voluntary for

In most cases, ASC is voluntary and used to substantiate responsible farmed seafood claims.

Deep dive

4 min read
Updated Sep 6, 2026

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What’s Required

1. ASC Farm Standard compliance

ASC farm certification is based on the ASC Farm Standard. The standard defines responsible practices for aquaculture grow-out farms and covers fish, farm, people, and the planet.

Farms may need to demonstrate:

  • Environmental stewardship.

  • Water quality management.

  • Animal health and welfare.

  • Responsible feed practices.

  • Farm management systems.

  • Legal compliance.

  • Human rights.

  • Worker health and safety.

  • Community engagement.

  • Monitoring and records.

2. Unit of Certification

ASC certification applies to a defined farm Unit of Certification. The scope needs to be clear so that certified and non-certified production can be distinguished.

Project teams should define:

  • Farm site.

  • Species.

  • Production system.

  • Ownership and management.

  • Harvest scope.

  • Certified product flow.

  • Audit boundaries.

3. Chain of Custody certification

Once ASC-certified product leaves the ownership of the certified farm Unit of Certification, each subsequent company in the supply chain that owns ASC-certified product must hold valid ASC Chain of Custody certification. ASC uses the MSC Chain of Custody Standard plus the ASC-owned CoC Module to verify the origin of seafood sold as ASC-certified.

Supply-chain companies may need:

  • Certified supplier checks.

  • ASC product identification.

  • Segregation controls.

  • Traceability records.

  • Volume reconciliation.

  • Label and claim controls.

  • Audit documentation.

4. Label and claims control

Companies using the ASC label or claims must ensure products are certified, traceable, and covered by the correct Chain of Custody scope. ASC claims should not be used for non-certified products, uncertified species or unverified supply chains.

5. Independent assessment

ASC certification is carried out through independent certification bodies. Farms and supply-chain entities must provide evidence, respond to audit findings and maintain systems during the certification period.

Important Deadlines

ASC is voluntary, so there is no universal legal deadline.

Important timing points:

  • Certification timing depends on farm audit, evidence, corrective actions, and certification decision.

  • ASC Farm Standard v1.0 applies globally to aquaculture grow-out farms, with current version updates available through ASC’s programme centre.

  • Chain of Custody certification is needed after certified product leaves the farm Unit of Certification if companies take ownership and sell it as ASC certified.

  • Companies should check current ASC standard versions, species scope, and audit requirements before making claims.

Current Status

ASC Certification is active and global. ASC’s Farm Certification Programme describes the Farm Standard as a global sustainability standard for seafood production in aquaculture grow-out farms.

Current status:

  • Active global certification program.

  • Focused on responsible aquaculture.

  • Uses ASC Farm Standard.

  • Includes supply-chain Chain of Custody requirements.

  • Uses MSC Chain of Custody Standard plus ASC CoC Module.

  • Relevant to farms, processors, retailers, distributors, and seafood brands.

Penalties for Non-Compliance

ASC does not impose statutory penalties.

Possible consequences include:

1. Certification refusal

A farm or company may fail certification if requirements are not met.

2. Suspension or loss of certification

Certified entities may lose certification if non-conformities are not corrected.

3. Loss of label or claim rights

Companies may lose the right to use ASC labels or claims if the product is not certified or outside the certificate scope.

4. Contractual consequences

Failure to maintain ASC certification may affect buyer contracts, procurement, tenders, or retail listing.

5. Reputational and greenwashing risk

Unsupported responsible aquaculture claims can create reputational and legal risk.

Examples of Known Violations / Failure Modes

Typical failure modes include:

  • Claiming ASC certification without a valid certificate.

  • Using the ASC label on non-certified seafood.

  • Selling ASC-certified product without Chain of Custody certification.

  • Mixing certified and non-certified product without controls.

  • Missing supplier certificate checks.

  • Incomplete traceability or volume records.

  • Misdefining the Unit of Certification.

  • Applying farm certification claims to uncertified sites or species.

  • Treating ASC as proof of legal compliance with all aquaculture rules.

  • Continuing claims after certificate suspension.

  • Confusing ASC farmed seafood certification with MSC wild-capture certification.

  • Not maintaining human rights, labor, or animal welfare evidence.

Resources


Maílis Carrilho
Added by:
Maílis Carrilho
Sustainability Research Analyst
Maílis Carrilho is a Sustainability Research Analyst (Intern) at Net Zero Compare, contributing research and analysis on climate tech, carbon policies, and sustainable solutions. She supports the team in developing fact-based content and insights to help companies and readers navigate the evolving sustainability landscape.
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Added on Sep 8, 2026 by Maílis Carrilho · Updated on Sep 6, 2026