Responsibility for the INPA is shared by the Nuclear Science Division and the Physics Division at LBNL. These Divisions are directed by James Symons (NSD) and James Siegrist (PD).

The activities of the Institute are determined by the Head and the members of the Steering Committee. Their names, e-mail addresses ("e-mail name"@lbl.gov) and scientific areas are as follows:

Gregory Aldering, "GAldering" Supernova Cosmology

Hank Crawford "HJCrawford" High Energy Nuclear Astrophysics

Stuart Freedman "SJFreedman" Weak Interactions

Kevin Lesko "KTLesko" Neutrino Astrophysics, Co-Director, INPA

Michael Levi "MELevi" Supernova Cosmology

Eric Linder "EVLinder Supernova Cosmology, Co-Director, INPA

Richard Muller "RAMuller" Geoastrophysics

David Nygren "DRNygren" High Energy Neutrino Astrophysics

Carl Pennypacker "CRPennypacker" Hands on Universe

Saul Perlmutter "S_Perlmutter" Supernova Cosmology

Buford Price "PBPrice" High Energy Neutrino Astrophysics

Bernard Sadoulet "BSadoulet" Dark Matter

George Smoot "GFSmoot" Cosmic Background Radiation

Robert Stokstad "RGStokstad" High Energy Neutrino Astrophysics

Cathy Thompson, Administrator "INPA"