|(a) Single family residential dwellings, as defined
in §388.002 of the Texas Health and Safety Code, that are newly
constructed or reconstructed shall comply with §388 of the Health
and Safety Code (Texas Building Energy Performance Standards).
(b) Effective September 1, 2016, the Texas State Energy
Conservation Office adopted the 2015 International Residential Code
(Chapter 11) as the state-mandated energy code for all residential
construction, which includes one- and two-family residences of three
stories or less above grade.