Thailand Thailand to launch “Self-declaration of Compliance” by Factory Act

Thailand to launch “Self-declaration of Compliance” by Factory Act

Thailand announced “Ministerial Regulation on Performance Report on Compliance with Factory Act B.E. 2564 (2021)” in the Royal Gazette on 20 December 2021. The regulation requires factory operators to declare their compliance status with the Factory Act every three years. Thailand amended the Factory Act B.E.2535 (1992) for the first time in April 2019. The amendment abolished the renewal system of factory licensing while introducing a new requirement for factory operators called “Self-declaration”. The Ministerial Regulation, which is going to be effective on 19 April 2022, sets out an overarching framework to implement the Self-declaration.

Factory operators shall report their performance every three years by April of the following year from the due date in accordance with the formats and methods as defined by the Director-General of the Department of Industrial Work. Such formats and methods may be defined differently depending on the factory types and sizes. The performance report must include the result of compliance with the Factory Act of the factory that has been achieved by a factory operator for the past year with the certification of a private inspector. The submission to DIW is made by an electronic network system.

Download original text of the Regulation at

Author / Responsibility


Managing Director, Green & Blue Planet Solutions Co., Ltd.

Business Performance

Managing and leadding a variey of environmental projects in Thailand and SE Asia


MSc in Envionmental Engineering and Management, Asian Institute of Technology (Thailand),
MSc in Environmental Science, UNESCO-IHE Institute for Water Education (the Netherlands)