The 2015 revision of ISO 14001 introduces a number of changes from previous versions. A review of 20 years of research on this standard is available for ASQ member.
As part of the effort to structure all ISO standards in the same way, the ISO 14001:2015 revisions include incorporating a required high-level structure, using mandatory definitions, and incorporating common standards requirements and clauses.
10 major areas of impact of the 2015 revision:
- Expansion in EMS coverage and scope
- Required interactions with external parties
- New requirements for leadership engagement
- Expanded legal compliance requirements
- Need for risk-based planning and controls
- New documentation requirements
- Expanded operational control requirements
- Changes in competence and awareness requirements
- Impacts on the internal audit program
- Increased certification costs






