The intention of 8VAC20-781-420 D is to be sure soft things are kept clean; I think adding that they shall be washable is useful, but having to wash everything each week will create a huge burden and ultimately likely decrease young children’s access to soft items in their environment.
Already tired teachers will reduce the stuffed animals, dress up clothes, and floor pillows that make classrooms cozy because weekly washing is not sustainable. In our program, we wash things like the covers for our Nugget couch cushions and futon covers monthly, which seems a lot more practical and much less likely to have unintended consequences. Imagine a child’s stuffed animal, how many washes do you think it could sustain. Required weekly washing will decrease the quality and the quantity of the materials available to children.