ISO 14001 is a certifiable environmental management system (EMS) standard applicable to any organisation, large or small, in all industrial, commercial and service sectors. The standard is recognised in most countries and participation in the scheme is voluntary.

ISO 14001 sets out the requirements for EMS implementation and certification, including environmental policy and objectives, significant environmental aspects, prevention of pollution and continual improvement of environmental performance.

ISO 14001:2015 replaces ISO 14001:2004 and has been substantially revised to incorporate a unified High Level Structure (HLS), which enhances compatibility with other ISO management system standards (MSS), including quality management system ISO 9001, energy management system ISO 50001 and the Occupational Health and Safety (OHS) standard, ISO 45001.

The new standard puts more emphasis on leadership and improving environmental performance and makes it easier for organisations to implement an EMS, in line with their own environmental policy and other relevant requirements.

Correspondence and differences between the 2004 and 2015 verison of the standard standards are shown here Mapping ISO 14001:2015 against ISO 14001:2004 and are also described in Annex B of the new standard.

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