Section 206(e) in The Tamil Nadu Building and other Construction Workers (Regulation of Employment and Conditions of Service) Rules, 2006
(e)the work in compressed air in a cofferdam or caisson is,-(i)carried out in accordance with the procedure laid down in the relevant national standards;(ii)carried out by such building workers who have completed 18 years of age and are medically examined as required under rule 223; and(iii)carried out under the supervision of a responsible person;
