INA dealing with the E2 Visa

I.N.A. § 101(a)(15)(E) states:

 
(E) an alien entitled to enter the United States under and in pursuance of the provisions of a treaty of commerce and navigation between the United States and the foreign state of which he is a national, and the spouse and children of any such alien if accompanying or following to join him:
(i) solely to carry on substantial trade, including trade in services or trade in technology, principally between the United States and the foreign state of which he is a national; or
(ii) solely to develop and direct the operations of an enterprise in which he has invested, or of an enterprise in which he is actively in the process of investing, a substantial amount of capital;