SOL Attachment 4. Factor 4 Sustainability Factor Instruc.pdf

This is a Sustainability Factor Instructions document that provides guidance to offerors on completing the sustainability evaluation table for IRA-Eligible Materials in a design-build construction project. The document outlines how offerors must complete Column B of the Sustainability Table with their IRA Limit commitments (Top 20%, Top 40%, or Better Than Average) for each eligible material.

The scoring system assigns Raw Scores based on the committed sustainability levels: 100 points for meeting GSA's Top 20% Limits, 40 points for Top 40% Limits, and 20 points for Better Than Average Limits. The document includes example tables showing materials like concrete, cement, asphalt, steel, and flat glass with their corresponding weight percentages and weighted scores. The evaluation weights range from 5% to 40% for different materials, with the total weighted scores adding up to 100%. Construction product assemblies must have at least 80% of their total cost or weight composed of compliant IRA-Eligible Materials.