Exemption for solar project machinery: ministerial certification and CEO undertaking required to preserve duty waiver upon initial setup. Exempts machinery and components for the initial setting up of solar power projects subject to two conditions: a Deputy Secretary level officer in the Ministry of New and Renewable Energy must recommend and certify quantity, description and specification as required for initial setup; and the project CEO must undertake to the local Deputy/Assistant Commissioner of Central Excise that the goods will be used only in the project, with duty recoverable from the Project Developer if that undertaking is violated.