Points to remember: 1) Units can be de-registered after 3 years of initial registration. 2) Units can be de-registered only from the decommissioned list. 3) This is applicable only for Physical/Hardware Devices. 4) Devices be de-registered once every 12 months only. 5) Bulk de-registration is not possible. 6) Products can be moved back to the product list from the decommissioned list.