(2)The manager shall ensure that -(a)a plan referred to in clause (b) of sub-regulation (1) of regulation 9 and also the different classes of hazardous zones of the mine, as classified under sub-regulation (1), shown in distinct colour wash, is maintained;(b)different classes of zones are distinctly marked at actual places in the field by suitable notice boards or other effective means; and(c)every person employed in the mine is made aware of the dangers associated and precautions to be taken in case of different classified hazardous zones.