The sixth edition of the Diversity Lab’s Mansfield Rule arrived on Tuesday with another challenge for its 250 member law firms: Consider at least 30% historically underrepresented lawyers from four historically underrepresented groups when promoting attorneys into the equity partnership and leadership roles.

Launched in 2017, the first Mansfield Rule also asked firms to consider 30% underrepresented lawyers in partner and leadership promotions, and the rule’s second iteration expanded the policy to include LGBTQ+ attorneys and lawyers with disabilities. The Mansfield Rule 6.0 broadens the criteria by asking firms to consider lawyers from each group, rather than just hitting 30% on aggregate. The new rule also applies the 30% consideration to C-suite roles.