Unclassified Foreign Visits &
The SLAC National Accelerator Laboratory supports an atmosphere
of free intellectual exchange and
collaboration within the international
scientific and technical community.
from around the world perform a vital role
in sustaining the creative environment and
contribute to achieving SLAC's mission.
visitors, however, require special
processing and approval.
Under DOE Order 142.3A (Unclassified Foreign Visits and
Assignments), all DOE facilities are
required to evaluate the visits and/or
assignments of individuals who are citizens
of, born in, or are affiliated with a few
countries identified by the DOE as
Additional evaluation and approval
is required for visitors from countries
identified by the U.S. Department of State
as being state sponsors of terrorism
(referred to as
under DOE Order 142.3A do not include those
T-4 Countries who have become U.S.
does, however, include U.S. Legal Permanent
Residents who are citizens of, born in, or
are affiliated with
Notification & Processing