From the Washington, DC Commission on the Arts and Humanities web site -
Since 1968, the District of Columbia Commission on the Arts and Humanities (DCCAH) has developed and promoted local artists, organizations and activities.
Our Mission at the DC Commission on the Arts and Humanities is to provide grants, programs and educational activities that encourage diverse artistic expressions and learning opportunities, so that all District of Columbia residents and visitors can experience the rich culture of our city.
DCCAH is governed by volunteers who are appointed by the Mayor and approved by the City Council.
DCCAH provides financial support and conducts programming in three primary areas:
DC Creates Public Art - The purpose of the DC Creates Public Art Program is to provide high quality art installations and administrative support services for the public so they can benefit from an enhanced visual environment.
Arts Learning and Outreach - The purpose of the Arts Learning and Outreach Program is to provide grants, educational activities and outreach services for youth, young adults and the general public so they can gain a deeper appreciation for the arts and enhance the overall quality of their lives.
Arts Building Communities (Grants and Programs) - The purpose of the Arts Building Communities program is to provide grants, performances, exhibitions and other services to individual artists, arts organizations and neighborhood/community groups so they can express, experience and have access to the rich cultural diversity of the District.
More info here.