The Department of Fish and Wildlife (DFW) and the Department of Health (DOH) both regulate commercial shellfish harvesting in Washington.  The DFW creates and administers rules governing certain aspects of harvesting such as the timing of seasons, required gear, and harvesting limits, while the DOH, in conjunction with the State Board of Health, create sanitization standards and requirements for harvesting processes.  Federal regulations also apply to some aspects of shellfish sanitization.

While the DFW's authority to regulate these aspects of commercial shellfish harvesting expressly includes the authority to regulate crabbing, the DOH's authority does not, as the DOH is only directly authorized by statute to regulate sanitization standards in relation to oysters, mussels, clams, and scallops, animals commonly referred to as bivalves.  Similarly, federal shellfish sanitization regulations only expressly apply to bivalves.
   

State Regulation of Shellfish Sanitization.
The DOH administers regulations that specify sanitization processes and standards associated with harvesting shellfish.  These regulations touch on many aspects of shellfish harvesting, including the quality of shellfish growing waters and areas, boat and barge sanitation, sewage and wastewater disposal, ventilation, insect and rodent control, shell disposal, garbage and waste disposal, and the handling, storage and refrigeration of shellfish.  These regulations are created by the State Board of Health but administered by the DOH. 

The DOH is not expressly authorized to regulate sanitization standards for commercial crab harvesting, as crab is not included in the definition of shellfish found in the statute that empowers the DOH's regulation of shellfish sanitization.

Federal Regulation of Shellfish Sanitization.
In addition to the state regulations administered by the DOH, Washington is a participant in the National Shellfish Sanitation Program (NSSP), which is a cooperative program between states and the federal government intended to regulate sanitary controls for shellfish.  The program is designed to promote and improve the sanitation of shellfish moving in interstate commerce through uniformity of state shellfish programs and regulations. 

Components of the NSSP include program guidelines, growing area classification and dealer certification programs, and the evaluation of state programs by the United States Food and Drug Administration (FDA). 

Any person engaged in shellfish harvesting, possessing a commercial quantity of shellfish, or possessing any quantity of shellfish for sale for human consumption, must comply both with the requirements of the NSSP and federal regulations adopted by the FDA requiring processors of fish and shellfish to implement Hazard Analysis Critical Control Point (HACCP) plans.  If a provision of either the NSSP model ordinance or regulations requiring HACCP plans are inconsistent with Washington law, the more stringent provision, as determined by the DOH, will apply.

The NSSP's definition of shellfish only includes bivalves, so its standards are not expressly applicable to commercial crabbing.

Department of Fish and Wildlife Regulation of Commercial Crabbing.

The DFW both has the express authority to regulate aspects of commercial crabbing in Washington, and actively regulates this industry.  The DFW issues and controls commercial crabbing licenses, and sets the time, geographic limits, gear requirements, and species controls of crab seasons.

The Department of Health may create regulations governing biotoxin contamination of commercially harvested crab and is directed to adopt rules regulating crab harvesting, tracking, and recalls by June 30, 2025.