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The National Construction Code (NCC 2019) requires a "termite management system" where a primary building element of a Class 1 or 10 building is considered susceptible to termite attack. There is a potential risk of termite attack in all parts of Australia except Tasmania, and a lesser risk in parts of Victoria. Treating pine framing (eg. 'Blue Pine') is considered to be an appropriate way of managing termite attack. However we consider a better strategy is to keep termites out of the building altogether. Where an approved barrier system is in place pine framing is not required to be treated, although the use of a product such as Blue Pine is still good practice since treated framing forms a second line of defence if termites breach the barrier. Ceiling battens are not "primary building elements" as defined in NCC 2019 and it is unlikely termites would reach the ceiling without being detected if there is a termite barrier in place and/or treated framing such as Blue Pine is used.