Hey does anyone know where to find the FDA and/or AAALAC/IACUC re gulations on animal tissue retention (mainly rodents)? I know at prev Sandlot pron guidelines state, (trash) tissue longer than Sarah Goebel, B.A., HT (ASCP) Histotechnician XBiotech USA Inc. 8201 East Riverside Dr. Bldg 4 Suite 100 Austin, Texas 78744 [DEL: (5 :DEL]