I created a label verification page in which the team will put the label on the paper and some other details and turn it into me daily. My question is, we have a lot of paper that are used once (invoices mainly) and we keep it for notes or any internal papers. Do you think I can print my verification on the other side of the used paper? Would an auditor give me an issue? The reason I would like to do this, is because we print many different labels a day and if I already have a lot of recycled paper, I can in a way save money by not printing on normal paper. We would use about 8 pages of label verification each day unfortunately due to the size of our labels and also how many different products we package. These are also labels we print in house.