The NADD IDD/MI Dual Diagnosis Accreditation Program

Developed in association with The National Association of State
Directors of Developmental Disabilities Services (NASDDDS)

The NADD IDD/MI Dual Diagnosis Accreditation Program was developed to improve the quality and effectiveness of services provided to individuals with a dual diagnosis (IDD/MI) through the development of competency-based professional standards and through promoting ongoing professional and program development. 

NADD offers accreditation for programs serving individuals with a dual diagnosis, rather than the agency or organization that offers these programs. An organization with several different programs that serve individuals with a dual diagnosis may seek accreditation for each of these programs.  A NADD Accreditation demonstrates that the program has met the standards established by NADD.

An overview of the NADD Accreditation Program is available in the Executive Summary.  For greater detail, see the Accreditation Program Manual.

The NADD Accreditation Program evaluates the philosophy and practice of the organization’s program in relation to eighteen competency areas, available here.

NADD Membership Requirement

Organizations seeking accreditation must have a currrent NADD Organizational Membership in order to qualify. For more information on NADD Membership, click the button below:



The application cost of Accreditation is $500, payable as a non-refundable fee; one application fee covers multiple programs in the same organization.

The Accreditation Survey cost depends on the size and complexity of the program in question, based on a flat fee of $3,000 per Surveyor per day plus travel expenses.

NADD Accreditation is valid for up to three years.

There is a $1,500 annual fee to maintain Accreditation, after the initial year. One annual fee covers multiple programs in the same organization.

Questions & Additional Information

For questions or additional information contact:

Certification Requirement

After the initial accreditation period, accredited programs are required to have at least ten (10%) percent of their clinical, specialist, and direct support staff certified through NADD programs.

In an effort to control the cost of accreditation, NADD offers discounted training and certification of personnel who work for an accredited program.