The floor surfaces in kitchens, in all
rooms and areas in which food is stored or prepared and in which equipment
is washed, and in walk-in refrigerators, dressing or locker rooms
and toilet rooms, shall be of smooth, non-absorbent materials, and
so constructed as to be easily cleanable; provided, that the floors
of non-refrigerated, dry-food-storage areas need not be nonabsorbent.
All floors shall be kept clean and in good repair. Floor drains shall
be provided in all rooms where floors are subjected to flooding-type
cleaning or where normal operations release or discharge water or
other liquid waste on the floor. Use of sawdust on floors is prohibited.
Dustless methods of floor cleaning must be used.