Study for the May, 2021 IDEX Exam

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IDEX Prep Online class

1. Content:
Lessons, quizzes and handouts on the IDEX
® California Classification system as follows:

Domain I - California Codes & Regulations
What is Title 24?
Intro to Building Codes and Title 24
Building Officials
Construction Documents
Fees and Inspections
Occupancy, Appeals, Stop Work, etc.
Occupancy Classifications
Construction types
Fire Resistive Requirements and Tech Bulletins
Interior Finishes 
Means of Egress 
Building Systems-Lighting/Energy
Building Systems-Fire & Plumbing

Domain II  - Business Practices and Ethics
Contractor's License Law
California Sales Tax
Three Day Recession Law
Business Procedures

Domain III - Design Standards
Design Theory
Human Factors
Design Phase
Contract Documents
Contract Administration

Class includes quizzes on all topics, a final quiz of 150 questions at the end of class,
and 50 handouts.
QUIZZES 75% = pass

2. Length of class and miscellaneous information:

We estimate the average student can get through the entire course in 24-30 hours and we give you 60 or 90 days of access (your choice). This allows plenty of time to go through the course content, take the quizzes, review, etc.  

3. Class developed by Deni J. Mosser, CID 0022 / NCIDQ 5865
Contact IDEXprep - Replies are generally Mon.-Sat. from 8 am to 8 pm
Class is accepted by CCIDC for 1.0 units of CEU credit (equal to 10 hours of class time).

4. Class Objectives:
This class has three primary objectives:

A. to familiarize students with the essential information contained in the IDEX

B. to establish the understanding of what a Certified Interior Designer is, how to submit plans to building departments, in order to practice to the fullest extent of their ability, and to protect the health, safety and welfare of the public;

C. help students pass THE IDEX
® CALIFORNIA examination.

5. Class Goals:
The specific goals of this class that relate to the IDEX
® CALIFORNIA exam and CIDs are:

A. To develop an awareness of:

- The role and responsibilities of Certified Interior Designers.
- The impact of California Building Codes on the public's health and safety.
- The performance and testing of interior finishing materials in the built environment.

B. To develop an understanding of:

- California building departments and the permit process.
- The importance of good business practices, and following a code of ethics.
- Various codes for fire life safety and disabled access.

C. To provide opportunities for students to:

- Explore a multitude of sources for technical, sustainable and environmental implications.
- Pass the IDEX

6. Type of class:

This is a self-study, online class. There will be no lectures and no studio component.

The teaching approach of this class requires discipline and independence and encourages self-teaching. Students are expected to read all the materials and take all the quizzes. Students are expected to recall facts, understand ideas, and be able to evaluate information.

The instructor is available to students via E-mail for specific questions or concerns, but there will be no assignments, class discussions, and no grading.

7. Prerequisite information:

A. Students who enroll in this class must already have an interior design education (or equal) and hopefully, some years of experience. This is a prep course for the purpose of passing an exam. It is not intended as a complete education in building codes or interior design.

B. Students are encouraged to first register for our 1-day free demo class to determine if the lessons, quizzes and handout materials are accessible from and compatible with their computer equipment and web browser. Register for the free trial class at

8. The primary references that were used to create this class are the very same references that were used to write the IDEX California exam:

2007-2016 California Building Code, Title 24, Part 2, Volume 1 and 2.
2007-2016 California Electrical Code, Title 24, Part 3.
2007-2016 California Mechanical Code, Title 24, Part 4.
2007-2016 California Plumbing Code, Title 24, Part 5.
2007-2016 California Fire Code, Title 24, Part 9.
2007-2016 California Energy Code, Title 24, Part 6.
2008 California Access Compliance Reference Manual (DSA). (CCIDC should be updating this)
Technical Bulletins #’s 116, 117, 121, 129, and 133, Bureau of Home Furnishings.
State of California, Business and Professions Code, Sec. 5800.
California Civil Code, Section 1689.
California Contractors License Law and Reference Book, CSLB, LexisNexis.
CCIDC Web site: Code of Ethics and Conduct, CID Law.
State Board of Equalization Bulletin “Tax Tips for Interior Designers and Decorators”.(2012)
Specifying Interiors by McGowan, Cruse, John Wiley & Sons, 2006 Second Edition.
Professional Practice for Interior Designers by Christine M. Piotrowski, John Wiley & Sons, 2008 Fourth Edition.
Beginnings of Interior Environments by Lynn M. Jones and Phyllis S. Allen, Pearson Prentice Hall, Tenth Edition.
Construction Drawings and Details for Interiors by Otie Kilmer and Rosemary Kilmer, John Wiley & Sons, 2003.
CalDAG 2009 Interpretive Manual and Checklist California Disabled Accessibility Guidebook by Michael P. Gibbens, Builder’s Book, Inc.
Residential Interior Design, A Guide to Planning Spaces by Maureen Mitton and Courtney Nystuen, John Wiley & Sons, 2007.
Residential Lighting Design Guide developed by the California Lighting Technology Center at UC Davis, 2014 (2013 code.)

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IDEX®California is an exam  to become a CID (Certified Interior Designer). IDEX Prep is an authorized partner with IDEX® California and CCIDC. Header adapted from Lisa Sabin-Wilson’s xMark theme