Every employer of an undertaking shall, within not less than thirty days before the date on which he proposes to operate the undertaking, submit to the Chief Inspector or an Inspector duly authorized by him in this behalf an application in Form No. 1 in duplicate, for the registration of the undertaking and grant of a certificate of registration:
Provided that in the case of an undertaking existing immediately before the commencement of these rules, such application made be made within sixty days from such commencement:
Provided further that where an undertaking ha units operating in more than one State, the employer of the undertaking shall apply for registration to the Chief Inspector or the Inspector as the case may be of the State in which its Headquarters Office is located.