TVNZ has reportedly banned hair straighteners from its premises in an attempt to "minimise risk".
A memo sent to staff, cited by NZME, was titled 'Hair straighteners must not be used on our premises'.
The national broadcaster's makeup and hair team are reportedly the only staff members who can now use straighteners.
According to NZME, the memo said: "As a live TV production environment, it's critical that we minimise the risk associated with using electrical devices.
"As well as the risk to safety and property damage, the operational risk to our live productions is considerable."
Newshub has contacted TVNZ for comment, but a spokesperson told NZME it was "looking to reduce non-essential electrical equipment to mitigate any risk of taking us off air".
One incident in January 2018 caused the evacuation of TVNZ headquarters in central Auckland, and a 30-minute delay of the 6pm 1 News programme.
Another evacuation in May 2019 forced the channel's Seven Sharp current affairs show prematurely off-air.
TVNZ is likely to be hyper-vigilant about preventing another such disaster, after rival broadcaster Spark Sport has been widely criticised for a glitchy Rugby World Cup stream.