ARSD 61:15:07:22. Interior finish requirements

Interior wall and ceiling finish shall conform to section 803.1, Table 803.11, chapter 8 of the International Building Code, 2015 edition. Exposed floor surfaces, including coverings which are applied over a previously finished floor, shall be a Class 2 material in required exits and passageways and in corridors providing exit access. If an automatic sprinkler system is installed, materials need not be classified. Class 2 materials are any materials having a critical radian flux of 0.22 watt per square centimeter as determined by NFPA 253, "Standard Method of Test for Critical Radiant Flux of Floor Covering Systems Using a Radiant Heat Energy Source," 2015 edition.