The status assigned to a production area for a particular shellfish species, is based on the last sample date of a sample submitted and analysed.
If the production area has not been sampled at the biotoxin sampling frequency
for that time of year for that species it will be deemed closed on the expiry
of that period. This closed status will supersede the status given on the last
report from that area. Two samples taken at least 48 hours apart are required to
re-open an area that has been closed.
* Monthly for all bivalve species except samples of M.edulis which are weekly.
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