IEC hold prevents grant of Let Export Order until revoked by the site that inserted the hold. ICES now includes an EXP_HOLD role allowing authorised officers to insert and revoke an IEC-level hold that blocks grant of Let Export Order for all shipping bills pending LEO; the system displays a prohibition message at LEO generation and records the inserting officer and site in SB Enquiry. A corresponding HOLDDRI role permits DRI holds. Revocation is limited to the site that inserted the hold, and holds from both field and DRI roles must be removed before LEO can be granted.