The Division's shellfish growing area classifications are based on an extensive assessment of local environmental conditions and pollution sources, including impacts to water quality in the area. The principal components of these sanitary surveys, which are conducted by Division staff trained by the U.S. Food and Drug Administration, include:
Additionally, shellfish are tested for various poisonous or deleterious substances based on assessment of pollution sources identified by the sanitary survey and as a result of oil and chemical spills. The results of the sanitary survey is summarized in a written report by the Division.
In accordance with M.G.L. c. 130, §§ 74 and 74A, the Division classifies a shellfish growing area based on the results of the sanitary survey and as required by the Model Ordinance. Depending on the extent to which an area is contaminated, the Division will make one of the following classification determinations for the area: Approved; Conditionally Approved; Restricted; Conditionally Restricted; and Prohibited. The Division's classification of the shellfish growing area determines whether the harvest of shellfish is approved with or without restriction or prohibited in all circumstances.
The Division manages the statewide shellfish safety and sanitation program to ensure shellfish are safe to harvest and protect public health. The municipalities control the regulation and management of both commercial and non-commercial shellfisheries in waters under municipal control, provided such waters are classified by the Division as Approved or Conditionally Approved while in an "Open Status". Certain Conditionally Approved areas that are predictably impacted by rain events can be managed by municipalities under an NSSP-required Conditional Area Management Plan.
Municipalities are then allowed to open and close these Conditionally Approved areas based on performance standards and subject to annual evaluation by the Division. Areas classified as Restricted or Conditionally Restricted are subject to state control, unless the Division has approved a local Shellfish Conservation and Management Plan pursuant to M.G.L. c. 130, § 75. In such cases, municipalities are granted limited shellfisheries management authority when these areas are in an Open Status, but are not allowed to change the sanitary status of these areas from open or closed on their own.
The scope of 322 CMR 16.03 includes a description of each of the shellfish growing area classifications, and sets forth the requirements applicable to each classification and the process for providing public notification regarding the classification and status.
322 CMR, § 16.03