Unit approval process: prescribed submission, Approval Committee review with hearing rights, and an appeal to the Board. A person seeking to set up a Unit in a Special Economic Zone must submit a prescribed proposal to the Development Commissioner, who refers it to the Approval Committee; the Committee may approve, approve with modifications after affording a hearing, or reject, and existing Units are deemed compliant. Aggrieved persons may appeal to the Board within prescribed time and form, subject to procedural rules and condonation for sufficient cause, while the Central Government may prescribe requirements, terms and conditions; the Development Commissioner issues a letter of approval specifying authorised operations.