Which South Carolina building code edition is currently adopted for residential construction?
Correct Answer
A) 2021 International Residential Code
South Carolina has adopted the 2021 International Residential Code for residential construction with state-specific amendments.
Why This Is the Correct Answer
South Carolina has adopted the 2021 International Residential Code (IRC) for residential construction, with state-specific amendments. The 2021 IRC is the current edition in force, making it the basis for all residential building inspections, permit applications, and contractor compliance in SC.
Why the Other Options Are Wrong
Option B: 2012 International Residential Code
The 2012 IRC is nearly a decade out of date relative to SC's current adoption. South Carolina has moved through multiple IRC cycles since 2012 and is now on the 2021 edition. Selecting 2012 reflects a failure to track current code adoptions.
Option C: 2018 International Residential Code
The 2018 IRC was a prior adoption cycle. While SC did use the 2018 IRC before its most recent update, the current adopted edition is the 2021 IRC. This distractor targets candidates who memorized the previous cycle's edition.
Option D: 2015 International Residential Code
The 2015 IRC is two code cycles behind the current 2021 edition. SC does not currently use the 2015 IRC for residential construction.
Memory Technique
Associate 2021 with '20/20 vision plus one' — South Carolina looked ahead with clear vision and adopted the 2021 IRC. Think of 2021 as the most recent post-pandemic building standard that SC moved to.
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