The deal does allow larger shipments if the price of uranium rises, but it is unclear when this will happen.
The 12 "reciprocal" states, California among them, allow direct shipments to states with similar laws.
The treaty allows shipments by air, and the changes would permit transportation by sea.
The easing, announced on Thursday, is allowing shipments of construction materials and some other items to be moved across the borders.
Popular Science, June 1960, p. 95, bottom of page, photo shows the radical railroad hairpin that allows shipment.
New Jersey's freight rail system allows cost-effective shipment of goods and reduces traffic on highways.
A process of freezing parbaked bread allows easy shipment (often from France) and baking in-store.
Today's agreement would allow shipments of extremely clear, hair-thin glass fibers that can carry light signals for miles with little distortion or fading.
This Act regulated gun commerce, restricting mail order sales, and allowing shipments only to licensed firearm dealers.
Elsewhere out on the flat plains, large shafts and cargo platforms opened to allow shipments of materials, mostly outbound.