dominguez30 dominguez30 26-08-2017 History contestada Please help!!Which were provisions of the Open Door policy? Check all that apply. All foreign countries had to pay taxes equally. Foreign countries with spheres of influence in China were exempt from taxes. Only the Chinese government could collect tariffs on trade. Countries with a sphere of influence should maintain free access to their ports. The United States would oversee the continuance of the Open Door policy.