Section 63K(1) in The West Bengal Factories Rules, 1958
(1)The occupier of a factory carrying on a 'hazardous process' shall provide and maintain in good order in Occupational Health Centre with the services and facilities as per scale laid down hereunder-(a)For factories employing upto 50 workers.(i)the services of a Factory Medical Officer shall be available to carry out the pre-employment and post-employment periodical medical examination as stipulated under rule 63J and to render medical assistance as and when required;(ii)there shall be a minimum of 5 persons trained in first-aid procedures of whom at least one person shall always be available during the working hours; and(iii)there shall be fully equipped first-aid box for the use of the workers.(b)For factories employing 51 to 250 workers :-(i)there shall be an Occupational Health Centre having room with a minimum floor area of 15 sq.m. with floors and walls upto a height of 1.5 metres made a smooth and impervious surface. The Occupational Health Centre shall be provided with adequate illumination and ventilation as well as equipment as per the Schedule annexed to this rule;(ii)there shall be a Factory Medical Officer in overall charge of the centre who shall attend the center at least thrice in a week and whose services shall be readily available during emergencies;(iii)there shall be one qualified and trained dresser-cum-compounder on duty in each shift;(iv)adequate number of fully equipped first-aid boxes shall be provided in the factory.(c)For factories employing above 250 workers :-(i)there shall be one full time Factory Medical Officer for factories employing upto 1000 workers and one more Factory Medical Officer for every additional 500 workers or part thereof;(ii)there shall be an Occupational Health Centre having at least two rooms each with a minimum floor area of 15 sq.metres with floors and walls upto a height of 1.5 metres made of smooth and impervious surface;(iii)the center shall be provided with adequate ventilation and illumination as well as equipment as per the schedule annexed to this rule;(iv)there shall be one qualified nurse, one qualified and trained dresser-cum-compounder and one sweeper-cum-ward boy in each shift; and(v)the center shall be suitably equipped to manage medical emergencies.