Lock-out notice procedure under industrial relations law requires employer disclosure, reasons, and circulation to labour authorities. Notice of lock-out by an employer of an industrial establishment is prescribed in Form XII under the labour law framework. The form requires the employer to state the name and address, the date of notice, the intended department(s) or section(s) of the establishment, and the reasons in an annexure. The notice is issued in accordance with section 62(2) of the Industrial Relations Code, 2020 and is to be forwarded to the registered union, if any, the conciliation officer, the Chief Labour Commissioner (Central), and the Secretary, Ministry of Labour and Employment.