Code of Federal Regulations Title 21. Food and Drugs § 21.112.145 What requirements apply to testing the environment for Listeria species or L. monocytogenes?

(a) You must establish and implement a written environmental monitoring plan that is designed to identify L. monocytogenes if it is present in the growing, harvesting, packing, or holding environment.

(b) Your written environmental monitoring plan must be directed to sampling and testing for either Listeria species or L. monocytogenes.

(c) Your written environmental monitoring plan must include a sampling plan that specifies:

(d) You must aseptically collect environmental samples and test them for Listeria species or L. monocytogenes using a method as set forth in § 112.152.

(e) Your written environmental monitoring plan must include a corrective action plan that, at a minimum, requires you to take the actions in § 112.146, and details when and how you will accomplish those actions, if the growing, harvesting, packing, or holding environment tests positive for Listeria species or L. monocytogenes.