The problem of this research was the Nadim Nakarim's speech as the minister of education and culture in 2019 is not in line with ministerial regulation No. 8 of 2020. The policy dis-harmonization between the Regulation of Minister Education and Culture in 2020 with the Policy of Minister of Education and Culture in 2019 gave confusion for the English teachers. The objectives of this study were to find out how do teachers perceive the regulation of the Education and Culture Minister number 8 of 2020 concerning the use of main teaching materials in the learning process. The significances of this research are the finding of this study is expected to contribute in the development of science especially English Education Science related to teaching material more specific English textbook for Junior High School students and also the results of this study are expected to be a reference for the government in making subsequent policies so that the policies that will be made by the government can be right on target. The design of the study employed a descriptive qualitative method with a design case study. There are various teachers’ perception regulations of the Education and Culture Minister number 8 of 2020 concerning the use of main teaching materials on the learning process in terms of the level of compliance, smooth routine functions, the occurrence of the desired performance impact

Keywords : Regulation, Policy, Textbook, Teachers, Perception.