Storage leases for all equipment for all carriers are exempt from the provisions of 49 U.S.C. subtitle IV except for 49 U.S.C. 11123. Nothing in this exemption should be construed to affect our jurisdiction under section 10502 or our ability to enforce this decision or any subsequent decision made under authority of this exemption section. This exemption shall remain in effect, unless modified or revoked by a subsequent decision of this Board.