SECTION 1. Section two of Act Numbered Twenty-nine hundred and eighty-five, known as the "Engineering and Architecture Law," is hereby amended to read as follows:
"SEC. 2. As soon as this Act takes effect, all persons desiring to practise the professions of engineer or architect shall be required to obtain licenses in the manner and under the conditions hereinafter specified: Provided, however, That no foreign engineer or architect shall be allowed to practise his profession in the Philippine Islands, unless the country of which he is a subject or citizen permits Filipino engineers or architects to practise within its territorial limits. But engineers and architects called by the Government from foreign countries for consultation shall be exempted from the requirement herein prescribed."