experiments had to be canceled. Other contributing factors were changes in national priorities, Government and industry disinterest in the program, public concern over the health and safety aspects of using nuclear detonations for civil applications, and shortages of funding (25: 26). 4.21.2 PLOWSHARE Test Operations. The Lawrence Livermore National Laboratory, which provided technical direction for the PLOWSHARE Program, conducted an extensive series of scientific projects at GNOME and SEDAN. Given the objectives of PLOWSHARE, the DOD did not stage military exercises during the program and had limited involvement in the shots. logistical support. The primary role of the military was to provide DOD personnel did, however, participate at GNOME and SEDAN in the VELA UNIFORM program, conducted by the DOD to develop U.S. capabilities in detecting and identifying underground nuclear detonations. In addition, the Air Force Special Weapons Center performed cloud-sampling, cloud-tracking, and support missions at the shots (25: 1-3). 4.21.3 $ Dose Summary for the PLOWSHARE Program. PLOWSHARE participants were limited to 3.0 rem of gamma and neutron radiation per calendar year and not more than 5.0 rem annually. The dosimetry information available for GNOME and SEDAN participants is included in the dose summary table given in section 4.20. 139