Transport Minister Steven Joyce says more border screening for exports is unlikely to be needed in the wake of a failed bomb plot overseas.
Two packages containing explosives, en route from Yemen to the United States, were intercepted at airports in Britain and Dubai on Friday after a tip from Saudi Arabia.
New Zealand Customs says it is increasing the risk assessments on incoming sea and air cargo from the Middle East, Britain and any other destination that may fit the expanded risk profile.
But Mr Joyce says strong security measures are already in place for exports that leave on passenger aircraft.
He says no international administrations have asked New Zealand to implement extra measures.