# Texas — Which energy code each US state enforces for new homes: the IECC edition (or state equivalent) actually in force, with effective dates and amendments, from the state rules themselves

For Texas, energy code in force is Energy Efficiency Chapter 11 of the 2015 International Residential Code (IRC); effective date is Sept. 1, 2016; adopting authority is SECO; statute / rule citation is Building Energy Efficiency Performance Standards, verified against its source on 2026-08-18.

- **State:** Texas _(verified: appears in the quote below)_
- **Energy code in force:** Energy Efficiency Chapter 11 of the 2015 International Residential Code (IRC) _(verified: appears in the quote below)_
- **Effective date:** Sept. 1, 2016 _(verified: appears in the quote below)_
- **Adopting authority:** SECO _(verified: appears in the quote below)_
- **Statute / rule citation:** Building Energy Efficiency Performance Standards _(verified: appears in the quote below)_

## What the source says

> <https://comptroller.texas.gov/programs/seco/> SECO Single-Family Construction 2015 International Residential Code, Chapter 11 Effective Sept. 1, 2016, SECO adopted the Energy Efficiency Chapter 11 of the 2015 International Residential Code (IRC) as the state&rsquo;s Building Energy Efficiency Performance Standards for residential construction (i.e., one- and two-family residences three stories or fewer above grade).

## Source

- https://comptroller.texas.gov/programs/seco/code/single-family.php

Last verified: 2026-08-18. Review by: 2027-02-14.
Part of [Which energy code each US state enforces for new homes: the IECC edition (or state equivalent) actually in force, with effective dates and amendments, from the state rules themselves](https://referencesource.org/energy-code-adoption-by-state/).