IAB Group B is an operational body of the IAB Board. It prepares, maintains and revises and approves the Rules and Operational Procedures for implementing the guidelines and the certification systems; recommends authorizations of ANBs and ANBCCs; approves Access Conditions, Transition Arrangements, Blended Learning Programs; and nominates Assessors (Lead Assessor Convener, Lead, Peer and BL).

Voting members of Group B are representatives from existing and applicant nominated Bodies of IIW (ANBs/ANBCCs).