Back in 2005 I checked three boxes (styrofoam) from ANC-IAH. These boxes contained various fish vacuum packed and frozen with a small amount of dry ice. In 2005 this was not an issue. However I read on CO's website that styrofoam boxes are not permitted. Back in 2005 I put these back in the carbboard boxes they were sold in. Will I be able to do the same here in 2008 or has CO changed their policy on shipping frozen vacuum packed fish from 05 to 08.

Thanks.