Shane William Hart did not realise he had crossed the centre line on a rainy night last August when his car slammed head-on into a car being driven by Shannon Buick.
The 22-year-old Masterton woman was killed instantly in the crash on Paierau Rd on August 30 and her 16-year-old sister Kaitlin was seriously injured.
Through defence lawyer Phillip Drummond, Hart, 24, of Whakatane, pleaded guilty to one charge of careless driving causing death and one charge of careless driving causing injury when he appeared before Judge Peter Butler in Masterton District Court yesterday.
Police prosecutor Sergeant Jodie Lawrence said that about 6.15pm Shannon had picked up Kaitlin after work and they were heading home, travelling north along Paierau Rd.
As they passed Kibblewhite Rd, Shannon pulled the car to the left of the road in an attempt to avoid a collision with Hart's Volkswagen, which had crossed the centre line, the court heard.