yes, as Kate pointed out, the origin has to be film. But inkjets are OK and we already had participants going that route. All the best for your husband.
Just to check - inkjet prints are allowed, as long as the original image was film and it hasn't been all photoshopped, just colour corrected? I'll be short of darkroom time this fall, my hubands recent illness has me behind on EVERYTHING. I do have a colour slide I'd like to scan and print for this exchange, as long as that's OK. OK?