Prepare for a career as a residential interior designer and the Certified Residential Interior Designer Education (R.I.D.E. ) exam. Learn design fundamentals, ethical practices, styles, concept portfolio development, and design a family room. The Certified Residential Interior Designer credential should not be confused with the Certified Interior Designer status certified and regulated by the Maryland State Board of Certified Interior Designers. This program does not meet the education and experience requirements necessary for Maryland State Certification.