The index uses a Responsibility (R-Factor) developed by SSGA to score companies in the parent index for ESG criteria. The R-Factor takes into account ESG and corporate governance factors when scoring companies. It excludes companies that derive significant revenue from any of the following: extreme event controversies, controversial weapons, UN Global Compact Violations, civilian firearms, thermal coal extraction, and tobacco. Companies that do not have an R-Factor in the parent index are also removed.