Certified Interior Designer Title Act – California

Enacted on January 1, 1991, the Certified Interior Designer Title Act (SB 153) marked a pivotal advancement for the interior design profession in California. Driven by the efforts of both commercial and residential design groups and the California Legislative Coalition for Interior Design, the Act established the formal title of Certified Interior Designer (CID) within the California Business and Professions Code.

The CID Title Act—administered by the California Council for Interior Design Certification (CCIDC)—recognizes interior designers who meet stringent requirements in education, experience, and examination. This credential ensures that certified professionals are qualified to provide safe, functional, and high-quality design solutions in both commercial and residential settings.

The legislation enhances public trust by holding certified interior designers to consistent standards of competence and professional ethics throughout California.