CMS and Office of the State Fire Marshal will only cite facilities if the corrosion, paint, dust, or lint is heavy and would prevent proper operation.
National Fire Protection Agency Standard: Sprinklers shall be inspected from the floor level annually. Sprinklers shall be free of corrosion, foreign materials, paint, and physical damage and shall be installed in the proper orientation (e.g., upright, pendant, or sidewall). Any sprinkler shall be replaced that is painted, corroded, damaged, loaded, or in the improper orientation. 1998 National Fire Protection Agency 25, 2-2.1.1