Hello, is anyone aware of any regulation that would prohibit a facility from importing a product and then performing additional reference testing on it and having the antigen codes print on the 4x4 full face label? Or can this only be accomplished with in-house products.

Once you import a product itsn't it inhouse? If you are ag typing there is no reason not to add this to the ISBT label.

Yes you would own the product and you can do what ever you want with it, convert, divide, the "Further Processed by" info is then generated on in the lower right of the label I was just curious if there was any regs or guidance on additional antigen testing for purchased products specifically for labeling.