A police check will be required in order for people to use explosives in the workplace under a new rule proposed by the Environmental Risk Management Authority.
Under the change, people must also prove they use explosives as part of their job to receive a controlled substances licence.
The proposal comes after police presented their concerns over the possession and operation of explosives to ERMA.
Spokesperson Andrea Eng says the new rule is in line with international restrictions about who can operate explosive material.
Ms Eng says though a growing awareness of terrorism may be a factor in other countries, as far as the authority is concerned, the new rule is about safety.
She says the change will not affect the sale of fireworks or marine safety flares.
Public submissions will be heard until 17 March.