Government Nursing Officers Association (GNOA) started in 06-04-1997. The Union start working as a federation called HSTUA later. GNOA joins UNI as HSTUA in 2012. Now total membership is almost 22000. It is 80% of nursing officers.

President     - Saman Rathnapriya
Secretary    - Nalaka Hettiarachchi
Media Secretary - Jayantha wimala Rathna
Treasurer    - E A Jayasinghe