What does life cycle impact assessment mean?
Life cycle impact assessment evaluates the magnitude and significance of potential environmental impacts from inventory results. It is not the inventory itself; it is the impact-evaluation layer that follows inventory compilation.
Source context
This page follows ISO 14067:2018. LCIA depends on selected impact categories, characterisation methods, and study scope, so results need method context before comparison.
Official definitions by source
ISO 14067:2018
ISO 14067:2018 - Greenhouse gases — Carbon footprint of products
phase of life cycle assessment (3.1.4.3) aimed at understanding and evaluating the magnitude and significance of the potential environmental impacts for a product system (3.1.3.2) throughout the life cycle (3.1.4.2) of the product (3.1.3.1)
Reference: 3.1.4.5
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Regulatory context
This term originates in ISO 14067:2018 and/or ISO 14044 LCA methodology. It is used in EU product regulation — particularly under the EU Battery Regulation (PEF method for carbon footprint) and ESPR (environmental footprint) — because both regulations require lifecycle-based quantification of environmental impacts. Practitioners applying these regulations should be familiar with these LCA/PEF concepts to correctly scope, conduct, and verify product-level environmental assessments.
Practical application
Implementation records should capture the impact category, inventory result, characterisation method, significance assessment, product-system link, method version, indicator result, and interpretation note.
Minespider commentary
Life cycle impact assessment is an impact-evaluation control: the evidence consequence is that inventory flows can be converted into method-specific impact indicators without hiding the category and characterisation choices.
Common confusions
- Confusing inventory data with impact-assessment results.
- Comparing LCIA results without checking impact category and characterisation method.
- Treating impact assessment as the final conclusion without life-cycle interpretation.
Related regulations
Related terms