The Global Aquaculture Alliance (GAA) Best Aquaculture Practices (BAP) standards require verifiable systems for traceability that fully account for all inputs, production, and outputs at each step in the production chain. Systems can be online, paper, electronic, or a combination and are verified during on site audits. Mass balance and mock recall tests are required both by the facility and during the audit. Audits are conducted annually by Independent ISO 17065 Accredited Certification Bodies. Each audit includes full traceability systems tests and traceback exercises. Traceability verification tests are also conducted in the marketplace through identifying product in stores and performing tracebacks on a routine basis. Rules regarding proper traceability and use of the BAP Certification Mark are also established as part of the BAP Certification Mark Agreement.