The Industrial Employment (Standing Orders) Act, 1946 (the IESO Act) is applicable to every industrial establishment wherein 100 or more workmen are employed or were employed on any day of the preceding twelve months. The IESO Act Amis to bring uniform terms and conditions of service in various industrial establishments. The IESO Act requires every employer in an industrial establishment to clearly define and publish standing orders with respect to conditions of employment / service rules and to make them known to the workmen employed by it. The Act further specifies that every employer is required to submit to the Certifying Officer five draft copies of the standing orders which he intends to adopt for his establishment.

Further, the IESO Act requires display of standing orders in a prominent place for the knowledge of workers.