Energy efficiency construction code looms for NT buildings SatSaturday 6 FebFebruary 2021 at 9:00pm Unlike Darwin's climate, the construction industry has been cool on the national energy efficiency code — but that may soon change. ( Share Print text only Cancel The Northern Territory is investigating the "possible adoption" of a code that will keep the cold in and the heat out of its public buildings. Key points: The government is considering implementing section J of the national construction code Some new government buildings have been built to section J requirements In the 10 years since the national construction code was written, the NT never adopted section J, which deals with energy efficiency.