New premises for the Drugs, Health and Development Project Trust's (DHDP) needle exchange was opened in Masterton on Monday.
The needle exchange provides intravenous drug users with clean equipment to reduce instances of HIV/Aids and hepatitis B and C in the community.
Health Minister Peter Dunne, who opened the new premises, said the needle exchange was an important service, helping more than 1400 Wairarapa people each year.
More than 2.5 million sterile needles and syringes were distributed to people each year, through various outlets in New Zealand.
Mr Dunne said these services had contributed to New Zealand having one of the lowest rates of HIV in the world.