Cal. Code Regs. tit. 17 § 7744
Unless shellfish are shucked directly into packing containers with no further processing, the shucking and packing processes shall be done in separate rooms. There shall be installed in the partition between the two rooms a delivery window through which the shucked stock is passed to the packing room. Provision shall be made for storing the employees' outer garments, aprons, gloves, etc., in a separate room.
* In special instances where shucking is done on a small scale for local retail sales, shucking and packing may be permitted in a single room if approved by the State Department of Public Health. This single room and all operations shall conform to all requirements of these regulations except that of separate shucking and packing rooms. "Limited" certificates shall be issued in these instances and all containers of shucked shellfish shall be clearly labeled or marked with the words "limited certificate" and the appropriate certificate number.
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* Not a building standard.
Cal. Code Regs. Tit. 17, § 7744