An environmental aspect is an element of an organisation’s activities, products or services that interacts or can interact with the environment. The resulting change to the environment is the impact.
The distinction matters and is constantly muddled: discharging solvent to drain is the aspect; water contamination is the impact.
Significance
ISO 14001 requires you to determine which aspects have or can have significant environmental impacts, using defined criteria. Significant aspects drive your objectives, your operational controls and your emergency preparedness — so the determination shapes the entire system.
There is no prescribed method. Common criteria include severity of impact, likelihood, frequency, regulatory exposure, and interested party concern.
The life cycle perspective
Both the 2015 and 2026 editions require aspects to be determined from a life cycle perspective — considering the stages of your product’s life you can control or influence, including raw material acquisition, use, end-of-life treatment and disposal.
This does not require a full life cycle assessment. It requires that you looked beyond your own fence line.
Normal, abnormal and emergency
Aspects must be considered under all three conditions. Routine operation is the easy case. Start-up and shutdown, maintenance, and spill or fire scenarios are where the significant impacts frequently sit, and where registers most often stop short.
Note on the 2026 edition
ISO 14001:2026 was published on 15 April 2026 and the 2015 edition was withdrawn the same day. The life cycle perspective carries into the new edition. No transition deadline has been published — Global ACI’s own record still lists the relevant mandatory document as unnumbered.