The charges follow a two-car collision on Houhora Heads Road on May 15.
One of the passengers of the other vehicle, Marion Evelyn Andrew, 77, died at the scene.
Pauline Mary Ogilvy, 76, died at Whangarei Hospital the same day.
The double-fatality occurred just over a month after an American visitor was charged with causing two deaths in another Far North road crash.
US citizen Reiss Martin Berger, 21, and his partner had been in New Zealand on his first visit only hours before that crash about 11pm on April 2.
The impact killed James Hamiora and Yvarn Tepania, who were in the front seats, and injured two others in the back of the car, about 7km south of Kerikeri.