Single registration for closely located interlinked factory premises allowed, subject to movement accounting and commissioner-imposed conditions. Substitutes condition (3) of Notification No.36/2001 to permit single registration where multiple premises of the same factory within a close area under a Range Superintendent have interlinked manufacturing processes and are not covered by area-based exemptions, subject to proper accountal of movement of goods between premises and any conditions or limitations the Commissioner of Central Excise may impose.