The ministry's scope includes air quality, noise control, monitoring and inspection of environment, solid waste, recycling, sustainable development and international cooperation.

From March 1971 to 28 January 1982, the Department of Environmental Health was established to look after protecting the environment.

Various agencies such as the Department of Health and others managed the soil and water aspects of environment.

From 29 January 1982 to 21 August 1987, the Environmental Protection Bureau was established to take over responsibility for noise and traffic control, air, water, waste management, health responsibilities under the Department of Health.

It encompassed toxic substance management, environmental sanitation and monitoring and inspection of the environment.