| NETL CO2U LCA Guidance | Technology, geographical, temporal | 99% Cut-off criteria based on mass, energy, environmental significance | NETL CO2U openLCA LCI DB | Mandatory sensitivity analysis | Qualitative |
| 45Q Addendum | Technology, geographical, temporal | Completeness shall be demonstrated by the inclusion of at least 99% of the carbon inputs and outputs | Document data sources, representativeness, and limitations | Uncertainty analysis is not required | - |
| LCA4CCU Guideline | Background data quality documented (age, technology, quality, consistency) | Company/technology specific data needed (no benchmarks) | Identify CCU data gaps, Ensure soft-ware independent format | Ensure transparency, Report uncertainties using quantitative and qualitative methods | - |
| GCI TEA/LCA Guideline | Technology, geographical, temporal | The desired level of completeness and applied cut-off criteria shall be clearly described. | Document data sources, representativeness, and limitations | Basic approach using sensitivity analysis and scenario analysis required, intermediate approach using uncertainty analysis) recommended | TRL, Scenario-based qualitative analysis |
| Domestic LCA Guideline for CCU | Technology, geographical, temporal | 95% Cut-off criteria | Data sources shall be categorized as measured, calculated, estimated, or guessed | Uncertainty analysis recommended | Quality grade (A~C grade) |