The District of Columbia Mayor has structurally aligned boards and commissions with programmatic and operational clusters in District government. Most boards and commissions are governed by an organizational functions of an executive agency and have an administrator as a primary liaison. District boards and commissions vary in size and complexity, yet all are designed to help shape and influence critical decisions and services for District residents. As a result, Board members must have experience, dedication and commitment to service. The Mayor makes appointments to over 180 different public bodies, including boards and commissions, independent agencies, advisory groups, task forces and organizations. DC boards and commissions provide guidance to District Government functions and/or engage subject matter experts and community leaders. Boards fall into the following categories,Advisory boards – commissioners provide personal and professional subject matter expertise and make recommendations to the Mayor and District Agencies in specific topics.Licensing and regulatory boards – commissioners with professional and personal expertise in subject matter help develop standards for licensed professions. These boards may also establish regulatory standards for professions and District Agencies.Policymaking boards – commissioners with District Agencies to shape policy.Managing boards – Independent agencies with Board of Directors who provide governance and serve a fiduciary role in leading the organization.