Fireworks are due to go on sale from tomorrow until Wednesday and Guy Fawkes revellers are urged to be responsible and respectful when using them, Environment Minister Nick Smith says.
"We want people to enjoy their fireworks but this relies on users carefully following instructions, ensuring children are properly supervised and being conscious of neighbours and animals."
Fireworks regulations tightened in 2008 resulting in reducing the period of sale to four days, increasing the age of purchase from 14 to 18, and restricting the power and size of retail packages.
Those restrictions had been successful in bringing down the number of fireworks related injuries and fire incidents, Dr Smith said.
"The downward trend over the past six years in injuries and fires from the use of fireworks is encouraging.