- June 7, 2002 1605 Grand Avenue, Suite 4 San Marcos, CA 92069 Phone: 760 - 761-4734 / Fax: 760 - 761-4736 E-mail: office@ccidc.org Public Protection Through Examination and Certification Mission: The California Council for Interior Design Certification is charged with the responsibility of certifying interior designers in compliance with the Interior Designer's Law, Section 5800 of the Business ...ccidc.org