In December 2010, the Puerto Rico Ports Authority (PRPA) issued a proposed regulation that would require all inbound cargo containers, regardless of whether the container was shipped from a company located in the United States or from a company located in a foreign country, to be scanned for contraband.  If enacted, the proposed scanning regulation would increase costs and result in supply chain delays.  The cost would range from $58 to $70 per container (depending on the size of the container).