Special Economic Zone definitions clarify scope, eligible units, infrastructure and authorized officers under the Rules. The rules define core terminology for a Special Economic Zone, specifying applicable instruments (Act, Foreign Trade Policy licences), categories of approved units (Export Oriented Unit, Software Technology Park, Electronic Hardware and Bio Technology Park units), and designated authorities (Authorised Officer, Specified Officer). They give operative meanings to inputs and assets-capital goods, components, consumables, spares, and raw material-and set an expansive definition of infrastructure covering industrial, transport, energy, telecommunication, social and utility facilities. Undefined terms are to follow the Act; amendments noted reflect substituted or omitted entries.