- A person shall, for the purposes of these rules, be deemed to have or to have had Silicosis:-(a)in the Ante-primary stage, when it is found on medically and radiological examination that the earliest detectable specific physical signs of Silicosis are or have been present, whether or not capacity for work is or has been impaired by such Silicosis;(b)in the Primary stage, when it is found on medical and radiological examination that definite and specific physical signs of Silicosis are or have been present and that capacity for work is or has been impaired by that disease though not seriously and permanently;(c)in the Secondary stage, when it is found on medical and radiological examination that definite and specific physical signs of Silicosis are or have been present and that capacity for work is or has been seriously and permanently impaired by that decease;(d)Silicosis with active Tuberculosis is equivalent to secondary stage.
