Dwight Eisenhower actually said...

The United States stands firmly by the agreements and the offers it has made in this regard, and we have not withdrawn from that position.

I would say this. Naturally, I am not a lawyer and I don't participate in drawing up the exact language of proposals.

This order shall not operate to amend, supersede, or terminate any rates or tariffs of fees, designations, or adaptations prescribed or made...

The rates or tariffs of fees and the regulations prescribed and any other actions taken by the Secretary of State under authority of this or...