Certificates of Veterinary Inspection (CVI), generally termed "Health Certificates", are pivotal for ensuring that translocated animals are not diseased or do not harbour significant pathogens. While used very successfully with terrestrial animal movement for decades, CVIs for aquatic animals are not well refined, understood or used, despite the availability of several aquatic animal "certification processes", "permits" and "health certificates", including the OIE model health certificates. Correctly designed CVIs provide the single most economical and effective assurance of disease status (generally freedom from specific diseases or pathogens) for individuals or lots of animals, at any point in time. When issued by a qualified independent third-party (typically a licensed and government accredited veterinarian) they provide the official level of assurance necessary for intrastate, interstate and international trade. Tailored modifications of CVIs are also useful for other purposes requiring the evaluation of animal health (e.g. specific pathogen-free (SPF) assurance for premises, risk-mitigating assurance necessary for insurance policies, breeding soundness assurance of broodstock, etc.). Here we discuss necessary information for aquatic animal CVIs: animal, ownership and location; standardized diagnostic results and their interpretation; and language contained in CVIs. Also addressed is the viability for use with multiple aquatic species and diseases/pathogens of interest, and their use in conjunction with established veterinary inspection procedures. A revised model aquatic CVI, with broad potential use for individual operations, states or countries, is offered for discussion, comment and refinement. In addition an optimally designed model CVI may be of use with electronic systems that are evolving in, for example, Europe, the USA and Australia/New Zealand (e.g. TRACES, e-CVI, e-Certs).