Final answer:
To serve live oysters and clams from their tanks, they will need a health department variance, a sanitized tank, and an air gap.
Step-by-step explanation:
To serve live oysters and clams from your tanks, you will need a health department variance. This is a permit or approval from the health department that allows you to serve live seafood. It ensures that your tanks meet the necessary health and safety standards.
In addition to the health department variance, you will need a sanitized tank. It is important to maintain a clean and sanitized tank to prevent the growth of harmful bacteria that could contaminate the oysters and clams.
An air gap is also necessary to prevent cross-contamination. This means that there should be a physical separation, such as a gap or barrier, between the water in the tank and any potential sources of contamination.