The Lousiana Mollsucan Shellfish Program classifies molluscan shellfish growing areas for 4 classification periods: May through August, September through October, November through February, and March through April. Each classification period is determined by extensive water quality sampling collected during adverse conditions using criteria recognized by the Food and Drug Administration (FDA).

Maps in .pdf format can be downloaded/viewed by using Adobe Acrobat Reader below by selecting the map frame of interest under "Related FILES" or click on the SEPTEMBER OCTOBER  2022 link below to be directed to the GIS Online WEB APP:

Click on the September October 2022 link to go directly to the current classification within a WEB APP.


Any questions regarding the classification of Louisiana Mollsucan Shellfish Growing Areas can be directed to Christopher Lemaire by emailing or  Jennifer Armentor at


Click on the below link to view the next Molluscan Shellfish Classification Season