EGAS stands for European Group on Atomic Systems, formerly known as European Group on Atomic Spectroscopy (name changed in 2004).

EGAS is a section of the AMOPD (Atomic, Molecular and Optical Physics Division) of the EPS (European Physical Society).

Aims of EGAS:

• promotion of  studies in atomic, molecular, and optical physics and related topics,
• facilitation of contacts between its members,
• encouragement of collaboration in scientific research and exchange of personnel between laboratories,
• stimulation of the interest of young physicists in the field of atomic, molecular, and optical physics
• organization of a yearly conference,
• contacts with related academic societies and other sections/divisions of the EPS.

The business of EGAS is carried out by the EGAS Board.

Major decisions (venues of future conferences, election of Board members, etc) are taken by the EGAS General Assembly that is held during the yearly conference. The General Assembly is an open event that can (and should be) attended by each conference participant.