I agree with the previous post, and particularly the last sentence.
Facility-locational interpretations may vary regarding the hygienic control of personnel clothing / changing rooms / restrooms.
Googling shows that restrooms / bathrooms (specific sampling point unspecified) are included within some environmental sampling programs.
Restrooms/bathrooms are typically classified within Zone 4 areas, eg see env (1,2,3,6) below.
Sampling programs / specific frequencies for Zones 1-4 are discussed in env (2,4,5,6)
As noted in Post 2, some of the motivation is related to Listeria issues. Zone 4 also appears as a (probable) low risk component within general ES Procedures.
env1 - Listeria in Ready-to-Eat _RTE_ Food Manufacturing Plants.pdf 148.33KB
env2 - pathogen environmental monitoring program.pdf 819.06KB
env3 - Kraft, environmental monitoring program.pdf 1.35MB
env4 - AIB environmental monitoring program.pdf 412.49KB
env5 - 3M Environmental Monitoring.pdf 1.09MB
env6 - Zoning Requirements, Pathogen Environment Monitoring for Dairy Suppliers.pdf 1.07MB
PS - from a mainly Listeria POV, i noticed this recent article which seemed well-informed and readable.
In contrast. I also noticed the snapshot illustrating the use of painted lines to control/separate a pathway for RTE/non-RTE workers as discussed in a practically different scenario in a recent thread. The concept still looks highly optimistic / questionable to me, even more so for a RTE operation.
PS - 3 more EMPG files here -