Which Tennessee building code edition is currently adopted for residential construction?
Correct Answer
A) 2021 International Residential Code with Tennessee amendments
Tennessee has adopted the 2021 International Residential Code with state-specific amendments for residential construction.
Why This Is the Correct Answer
Tennessee officially adopted the 2021 International Residential Code (IRC) with state-specific amendments as its current standard for residential construction. States periodically update their adopted code edition to align with the latest International Code Council (ICC) cycle, and Tennessee's current adoption is the 2021 edition.
Why the Other Options Are Wrong
Option B: 2012 International Residential Code with Tennessee amendments
The 2012 IRC was adopted by some jurisdictions nearly a decade ago. Tennessee has since updated its adoption to reflect more current code editions, superseding the 2012 version.
Option C: 2018 International Residential Code with Tennessee amendments
The 2018 IRC was a previous adopted cycle. While some Tennessee jurisdictions may still reference it, the state-level adoption has moved to the 2021 edition.
Option D: 2015 International Residential Code with Tennessee amendments
The 2015 IRC is two cycles behind the current 2021 adoption. It was an intermediate edition that Tennessee has since superseded.
Memory Technique
Tennessee '21: Think '2021 — the year many things got updated.' Tennessee is current. The answer is the most recent major code cycle listed: 2021.
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