The United Nations Information Service (UNIS) in Beirut has the dual role of providing information services for the Economic and Social Commission for Western Asia (ESCWA) and serving as a United Nations Information Center (UNIC) for the host country, Lebanon. "UN-ESCWA Press Releases" and "Other UN Press Releases" are prepared by UNIS.

UNIS/UNIC is responsible for the development and production of information programmes and activities on the work of the United Nations. It provides full coverage of the work of UN-ESCWA, as well as of United Nations meetings held at the commission. It disseminates materials produced by the Department of Public Information (DPI) at United Nations Headquarters on all topics of the United Nations work programme.

UNIS/UNIC works closely with local media, governmental and non-governmental organizations and United Nations associations (UNAs).