# Governance and Methodology Changes | Grid and Regions methodology
Source: https://greenpixie.com/docs/methodology/grid/governance

Working group, review cadence, and version control.

## 10.1 Routine Review [#101-routine-review]

The methodology is subject to periodic review to ensure continued alignment with developments in electricity market data publication, national greenhouse gas inventory methodologies, emissions accounting standards, and published research.

## 10.2 Material Changes [#102-material-changes]

Material changes to the methodology, including changes to the source selected for a grid area, the emission factor tables, the transmission and distribution loss treatment, or the cloud region weighting approach, are documented, reviewed internally, and reflected in updated versions of this document.

## 10.3 Version Control [#103-version-control]

Each published version of this methodology is assigned a version number. Changes between versions are documented to support audit and review requirements.