A place of business that regularly employs fewer than five employees and that was a place of business prescribed in Article 13, item (i) or (ii) of the former Health Insurance Act, or that was a place of business under the provisions of Article 16 of the former Employees' Pension Insurance Act by reason of having been such a place of business, is deemed to have obtained, on the day this Act comes into effect, the approval under Article 14 of the Health Insurance Act or Article 16-2 of the Employees' Pension Insurance Act; provided, however, that this does not apply if, within one month from the day this Act comes into effect, a notification to the effect that eligibility is to be lost for all insured persons is submitted to the administrative agency.