Nick read an old post about Addison's disease and blood and organ donation and here's what he came up with...
I do plan to post everything I find to http://addisoniansofnebraska.co.cc/content/donate-rules-nebraska, but so far:
The Nebraska: Community Blood Bank says NO.
Biomat USA (which handles blood and plasma donation) implied they would held it on a person by person bases.
the Cornhusker Chapter of the red cross said yes also.