How long does live clams, mussels, crab, and oysters keep from purchase in the freezer?

Official USDA FoodKeeper guidance for one exact storage condition

FreezerFrom the purchase date

2 to 3 months

This freezer duration is the USDA's best-quality guidance, not a safety cutoff.

Freezer at 0 °F (−18 °C)

Answer basis

Food: Live clams, mussels, crab, and oysters
Preparation or package state: No additional state listed
Storage: Freezer
Timing: From the purchase date
Source field: DOP_Freeze

Source: USDA FSIS FoodKeeper Data, data version 128.

See every listed condition for live clams, mussels, crab, and oysters