Since 1971, The Arc has been providing support and services to people with developmental disabilities. The Arc is a nonprofit membership corporation open to anyone with an interest in the welfare of individuals with developmental disabilities. The membership elects officers to serve on the Board of Directors each year.

In addition to the direct services The Arc provides to people in Amador and Calaveras counties, The Arc:

• Advocates for the development of new services
• Works cooperatively with regional, state, and national organizations to promote the welfare of individuals with developmental disabilities
• Plans to ensure the long-term availability of services for people with developmental disabilities
• Works to increase community awareness regarding the strengths and needs of people with developmental disabilities
• Works to enhance the health and wellness of the people served