Approval Committee for Special Economic Zone: constitution, membership composition and substitute representation rules for the engineering sector SEZ. Constitutes an Approval Committee for the Special Economic Zone for the engineering sector at the SIPCOT Industrial Growth Centre and prescribes its composition: Chairperson as the Development Commissioner, specified ex officio members from central and state departments (commerce, foreign trade, customs and central excise, income tax, banking, state industrial guidance) and a developer representative as special invitee, with substitution rules for the Development Commissioner by an officer not below Joint Development Commissioner.