X0206 3 2023-10-23 1 0000720154 Inotiv, Inc. NOTV 0001998739 Castetter Andrea 2701 KENT AVENUE WEST LAFAYETTE IN 47906-1382 0 1 0 0 SVP, Gen. Counsel & Secretary Exhibit 24 - Power of Attorney /s/ Beth Taylor, Attorney-in-Fact for Andrea Castetter (Power of Attorney attached) 2023-11-02