When a project is subject to multiple jurisdictions (e.g., federal, state, local) and their respective codes have conflicting requirements, the established legal and professional standard is to adhere to the most restrictive requirement. Complying with the most stringent rule ensures that all other less restrictive code requirements are also met, guaranteeing the highest level of life safety, health, and welfare mandated by any of the applicable authorities. This principle prevents designers from choosing a lesser standard that would violate a stricter, legally enforceable code.

A. Seek code variances for the conflicting codes: A variance is requested for specific hardships or unique conditions, not as a standard procedure for resolving conflicts between codes.

B. Comply with the least restrictive code that applies: This would result in non-compliance with the stricter codes, leading to legal violations and potential safety hazards.

D. Seek a code source that has restrictions that conform to the design solution: Codes are mandated by jurisdiction and are not optional; a designer cannot "shop" for a code that fits their design.

1. Harmon

S. K.

& Kennon

K. E. (2018). The Codes Guidebook for Interiors (7th ed.). John Wiley & Sons. In Chapter 1

"About the Codes

" under the section "Code Publications

" it is stated

"If there is a conflict between codes

the most stringent one is the one you must use." (p. 10).

2. Ballast

D. K. (2012). Interior Design Reference Manual: Everything You Need to Know to Pass the NCIDQ Exam (6th ed.). Professional Publications

Inc. In Chapter 10

"Building Codes and Regulations

" under the section "Building Codes

" the text clarifies

"If there is a conflict between different codes

the most stringent requirement must be used." (p. 10-3).

3. Piotrowski

C. M. (2016). Professional Practice for Interior Designers (6th ed.). John Wiley & Sons. Chapter 10

"Codes and Regulations

" explains the hierarchy of regulations and the principle that when codes conflict

the stricter requirement governs to ensure maximum public safety. (p. 231).