Section 3
SEC. 3. The Commission shall have power to establish a reasonable schedule of fees to be paid by public services concerned for testing services. Said tests shall be made only once every six months on taximeters; once every two-year Period on electric, water and gas meters: Provided, That this shall be without prejudice to any test asked for by any interested party, which shall be paid by said party should it be found that the complaint is unjustified, or by the public service concerned should it be found otherwise.