|(a) Single-family residential construction. Effective
September 1, 2016, the energy efficiency chapter of the International
Residential Code, as it existed on May 1, 2015, and as supplemented
by Health and Safety Code, §388.003(i) and (j), is adopted as
the energy code in this state for single-family residential construction
as it is defined in Health and Safety Code, §388.002(12).
(b) All other residential, commercial, and industrial
construction. Effective November 1, 2016, the International Energy
Conservation Code, as it existed on May 1, 2015, is adopted as the
energy code for use in this state for all residential, commercial,
and industrial construction that is not single-family residential
construction under subsection (a) of this section.