(4)Where the approval of the Chief Controller is sought for any type of electric apparatus for use in hazardous area, the person desirous of manufacturing the apparatus shall submit to the Chief Controller-(i)a comprehensive report accompanied by all necessary drawings, calculations giving references to recognised code or codes followed, full details of design and construction and necessary test certificates from the recognised bodies in respect of the apparatus and its components;(ii)a scrutiny fee of rupees five hundred.
