Under Chapter III of the Code on Social Security, 2020, dealing with the Employees' Provident Fund, the provisions apply to every establishment in which how many or more employees are employed, regardless of the type of industry? 

Chapter III of the Code on Social Security, 2020 extends the applicability of the Employees' Provident Fund to every establishment in which twenty or more employees are employed, regardless of the type of industry - removing the earlier restriction under the Employees' Provident Funds and Miscellaneous Provisions Act, 1952, which limited coverage to establishments falling within "scheduled employments" specified in that Act's Schedule. For determining whether this twenty-employee threshold has been crossed, all employees are counted, including those drawing wages above the wage ceiling notified by the Central Government; higher-paid employees cannot be excluded while assessing applicability. Notably, once Chapter III becomes applicable to an establishment, coverage continues even if the employee strength subsequently falls below twenty.