Mo. Rev. Stat. § 198.085: Categories of standards for each type of licensed facility.

In establishing standards for each type of facility, the department shall classify the standards into three categories for each type of licensed facility as follows:

(1) Class I standards are standards the violation of which would present either an imminent danger to the health, safety or welfare of any resident or a substantial probability that death or serious physical harm would result;

(2) Class II standards are standards which have a direct or immediate relationship to the health, safety or welfare of any resident, but which do not create imminent danger;

(3) Class III standards are standards which have an indirect or a potential impact on the health, safety or welfare of any resident.