Section 9-1 - Floor, Wall, and Ceiling Surface Characteristics (a) Except as specified under Chapter 9, Section 1(b), materials for indoor floor, wall, and ceiling surfaces under conditions of normal use shall be: - (i) Smooth, durable, and easily cleanable for areas where establishment or processing plant operations are conducted;
- (ii) Closely woven and easily cleanable carpet for carpeted areas; and
- (iii) Nonabsorbent for areas subject to moisture such as food preparation areas, walk-in refrigerators, warewashing areas, toilet rooms, mobile establishment servicing areas, and areas subject to flushing or spray cleaning methods.
(b) In a temporary establishment: - (i) If graded to drain, a floor may be concrete, machine-laid asphalt, or dirt or gravel if it is covered with mats, removable platforms, duckboards, or other approved materials that are effectively treated to control dust and mud; and
- (ii) Walls and ceilings may be constructed of a material that protects the interior from the weather and windblown dust and debris.