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2021 Code Words provide interpretations, written policies, and procedures to aid in the application of construction code.
Last updated: September 15, 2025
This technical memo is provided to describe the changes to the Houston Construction Codes with regards to a significant change in the base code related to the requirements for occupant load factors.
Uploaded 2-13-2024
Comparison of the 2012 UMC and 2015 UMC Houston Amendments.
Last updated: 03/22/2022
Code analysis between the 2015 Uniform Plumbing Code (UPC) Houston Amendments to the 2021 UPC base codes.
Last updated: 03/13/2023
Significant code changes & highlights of the 2018 and 2021 International Energy Conservation Code (IECC)
Code comparison between the 2015 Uniform Mechanical Code (UMC) Houston Amendments and the 2021 UMC proposed amendments.
Last updated: 04/25/2023
Significant Code Changes & Highlights of the 2015 th 2018 and 2018 to 2021 International Building Code (IBC)
Comparison of the 2012 IRC and 2015 IRC Houston Amendments.
Last updated: 03/22/2022