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U.S. Department of Energy ORDER
Washington, D.C. DOE O 420.2B
Approved: 7-23-04
Review: 7-23-06
Certified: 5-13-08
SUBJECT: SAFETY OF ACCELERATOR FACILITIES
1. OBJECTIVE. To establish accelerator-specific safety
requirements which, when supplemented by other applicable
safety and health requirements, will serve to prevent
injuries and illnesses associated with Department of Energy
(DOE) or National Nuclear Security Administration (NNSA)
accelerator operations.
2. CANCELLATION. DOE O 420.2A, Safety of Accelerator
Facilities, dated 1-8-01. Cancellation of an Order does not,
by itself, modify or otherwise affect any contractual
obligation to comply with the Order. Cancelled Orders that
are incorporated by reference in a contract remain in effect
until the contract is modified to delete the references to
the requirements in the cancelled Orders.
3. APPLICABILITY.
a. Primary DOE Organizations, Including NNSA
Organizations. Except for the exclusions in paragraph
3c, this Order applies to any of those Primary DOE
Organizations involved with accelerator facilities
(accelerators and their operations) or modules thereof,
including injectors, targets, beam dumps, detectors,
experiments, experimental halls, etc. (See Attachment 1
for a complete list of Primary DOE Organizations. This
list automatically includes Primary DOE Organizations
created after the Order is issued.)
The Administrator of NNSA shall assure that NNSA
employees and contractors comply with their respective
responsibilities under this Order.
b. Site/Facility Management Contractors.
(1) Except for the exclusions in paragraph 3c, the
Contractor Requirements Document (CRD), Attachment
2, sets forth requirements of this Order that will
apply to site/facility management contractors
whose contracts include the CRD.
(2) This CRD must be included in site/facility
management contracts that involve the management
and operation of accelerators unless superseded by
an alternative standard that is in accordance with
the terms of the laws, regulations, and DOE
directives clause of the contracts.
(3) This Order does not apply to other than
site/facility management contractors. Any
application of any requirements of this Order to
other
than site/facility management contractors will be
communicated separately from this Order.
(4) The office identified in the responsibilities
paragraph is responsible for notifying the
contracting officer of which site/facility
management contractors are affected. Once
notified, the contracting officer is responsible
for incorporating the CRD into the contracts of
affected site/facility management contractors via
the laws, regulations, and DOE directives clause
of the contracts.
(5) As the laws, regulations, and DOE directives
clause of site/facility management contracts
states, regardless of the performer of the work,
site/facility management contractors with the CRD
incorporated into their contracts are responsible
for compliance with the requirements of the CRD.
(a) Affected site/facility management contractors
are responsible for flowing down the
requirements of this CRD to subcontractors at
any tier to the extent necessary to ensure
the site/facility management contractors’
compliance with the requirements.
(b) Contractors must not unnecessarily or
imprudently flow down requirements to
subcontractors. That is, contractors will—
1 ensure that they and their
subcontractors comply with the
requirements of the CRD and
2 incur only those costs that would be
incurred by a prudent person in the
conduct of competitive business.
c. Exclusions.
(1) Unmodified commercially available units that are
acceptable for industrial applications, including
(but not limited to) electron microscopes, ion
implant devices, and x-ray generators.
(2) Accelerator facilities not capable of creating
radiological areas as defined in Title 10, Code of
Federal Regulations (CFR), Part 835, “Occupational
Radiation Protection; Final Rule.”
(3) Naval Nuclear Propulsion Program accelerators
covered under Executive Order 12344 (42 United
States Code 7158 Note).
(4) Nonmedical x-ray devices with the capability of
accelerating particles to energies not greater
than 10 MeV, which are operated in accordance with
American National Standards Institute N43.3-1993,
General Radiation Safety Standard for
Installations Using Non-Medical X-Ray and Sealed
Gamma-Ray Sources, Energies Up to 10 MeV, or in
accordance with another applicable consensus
standard as directed by the cognizant field
element manager/NNSA field manager.
(5) Low-voltage neutron generators incapable of
creating high-radiation areas (as defined in 10
CFR 835, “Occupational Radiation Protection; Final
Rule,”), which are operated in accordance with
National Council on Radiation Protection Report
72-1983, Radiation Protection and Measurements for
Low-Voltage Neutron Generators, or in accordance
with another applicable consensus standard as
directed by the cognizant DOE/NNSA field manager.
For the purpose of this Order, a low-voltage
neutron generator is defined as a bench-top scale,
single-purpose device generating neutrons by
accelerating deuterons or tritons into targets
through a maximum accelerating potential not
greater than 600 kV.
(6) Entire DOE/NNSA accelerator facilities or modules
thereof when and only when accelerators and their
operations involve or produce a sufficient
inventory of fissionable materials to create the
potential for criticality.
4. REQUIREMENTS. DOE/NNSA elements must require the following
of contractors.
a. Safety Assessment Document (SAD). A SAD must—
(1) identify hazards and associated onsite and offsite
impacts to workers, the public, and the
environment from the facility for both normal
operations and credible accidents;
(2) contain sufficient descriptive information and
analytical results pertaining to specific hazards
and risks identified during the safety analysis
process to provide an understanding of risks
presented by the proposed operations;
(3) provide appropriate documentation and detailed
descriptions of engineered controls (e.g.,
interlocks and physical barriers) and
administrative measures (e.g., training) taken to
eliminate, control, or mitigate hazards from
operation;
(4) include or reference a description of facility
function, location, and management organization in
addition to details of major facility components
and their operation;
(5) be prepared as a single document addressing the
hazards of the entire accelerator facility or as
separate SADs prepared for discrete modules of the
facility such as injectors, targets, experiments,
experimental halls, or other types of modules; and
(6) be maintained current and consistent with the
administrative control measures and physical
configuration of the facility and major safety
equipment.
b. Accelerator Safety Envelope (ASE).
(1) A documented ASE must define the physical and
administrative bounding conditions for safe
operations based on the safety analysis documented
in the SAD.
(2) Any activity violating the ASE must be terminated
immediately, and the activity must not recommence
before DOE/NNSA has been notified.
c. Unreviewed Safety Issues. Activities that involve
unreviewed safety issues must not be performed if
significant safety consequences could result from
either an accident or a malfunction of equipment that
is important to safety or for which a safety analysis
has not been performed. Activities involving identified
unreviewed safety issues must not commence before
DOE/NNSA has provided written approval.
d. Accelerator Readiness Reviews (ARRs). ARRs must be
performed before approval for commissioning and routine
operation and as directed by the DOE cognizant
Secretarial Officer/NNSA Deputy Administrator or a
DOE/NNSA field manager.
e. Training and Qualification.
(1) Requirements must be established for each
individual at an accelerator facility whose
activities could affect safety and health
conditions or whose safety and health could be
affected by facility activities. Training and
qualification must be documented and kept current.
(2) Only appropriately trained and qualified
personnel, or trainees under the direct
supervision of trained and qualified personnel,
are permitted to perform tasks that may affect
safety and health.
(3) All personnel assigned to or using the accelerator
facility (including emergency response personnel)
must be trained in the safety and health practices
and emergency plans consistent with their
involvement and the hazards present.
f. Written Procedures.
(1) Written procedures and instructions for conducting
activities safely must be maintained; must be
clear, current, and consistent with management
systems and the configuration of the facility and
equipment; and must be approved by a facility
contractor’s senior line manager who is actively
involved in the day-to-day operation of the
facility.
(2) Procedures must include descriptions of the tasks
to be performed; appropriate safety and health
precautions and controls; and requirements for
initial conditions to be verified, operating
conditions to be maintained, and data to be
recorded, as applicable.
(3) At a minimum, the contractor must prepare
procedures for—
(a) operation startup,
(b) normal operation,
(c) emergency conditions,
(d) conduct of maintenance,
(e) approval and conduct of experiments,
(f) review and approval of facility
modifications,
(g) management of safety-related changes, and
(h) control of facility access.
g. Internal Safety Review System.
(1) A system must be established and maintained to
periodically assess and document the condition of
the facility, equipment, and engineered safety
systems.
(2) Appropriateness and implementation of procedures,
administrative controls, and personnel training
and qualifications must be periodically reviewed
and documented by the internal safety review
system.
h. Shielding Policy. The contractor must approve and
implement a written statement of the shielding policy
for ionizing and nonionizing radiation.
5. RESPONSIBILITIES.
NOTE: For those activities designated as major or strategic
systems as defined in DOE O 413.3, Program and Project
Management for the Acquisition of Capital Assets,
dated 10-13-00, the approvals listed in paragraphs 5a and 5b
of this Order must be secured before request for approval to
start operations by the appropriate acquisition executive
authority.
a. DOE Cognizant Secretarial Officer/NNSA Deputy
Administrator.
(1) For an accelerator facility or module that has
potential for more than minor onsite or more than
negligible offsite impacts to workers, the public,
or the environment, approves the following:
(a) ASE,
(b) start of commissioning activities,
(c) start of routine operation activities, and
(d) exemptions from requirements of this Order.
(2) Approves restart of an activity at an accelerator
facility after a shutdown ordered by the DOE
cognizant Secretarial Officer/NNSA Deputy
Administrator or Assistant Secretary for
Environment, Safety and Health because of an
unreviewed safety issue, violation of an ASE, or
other safety concern.
(3) Provides to line organizations written guidance
for implementing the requirements of this Order.
b. DOE/NNSA Field Element Manager.1
(1) Approves the start of commissioning for an
accelerator facility (or module) that does not
have potential for more than minor onsite or more
than negligible offsite impacts to workers, the
public, or the environment after evaluating the
ASE, ARR, and SAD and determining—
(a) that a specific ASE will appropriately bound
commissioning,
(b) that an appropriate ARR was conducted, and
(c) that the risks as analyzed in the SAD are
acceptable when commissioning is conducted
within the specified ASE.
(2) Approves start of routine operation for an
accelerator facility (or module) that does not
have potential for more than minor onsite or more
than negligible offsite impacts to workers, the
public, or the environment after evaluating the
ASE, ARR, and SAD and determining—
(a) that the ASE will appropriately bound routine
operation,
(b) that an appropriate ARR was conducted, and
(c) that the risks as analyzed in the SAD are
acceptable when routine operations are
conducted within the specified ASE.
(3) After completing the process defined in paragraphs
5b(1)(b) and 5b(1)(c), recommends to the DOE
cognizant Secretarial Officer/NNSA Deputy
Administrator approval for start of commissioning
activities for an accelerator facility (or module
) that has the potential for more than minor
onsite or more than negligible offsite impacts to
workers, the public, or the environment.
(4) After completing the process defined in paragraphs
5b(2)(b) and 5b(2)(c), recommends to the DOE
cognizant Secretarial Officer/NNSA Deputy
Administrator approval for start of initial
routine operation activities for an accelerator
facility (or module) that has the potential for
more than minor onsite or more than negligible
offsite impacts to workers, the public, or the
environment.
(5) Approves restart of an activity at an accelerator
facility after shutdown that was ordered by a
DOE/NNSA field manager because of an unreviewed
safety issue, violation of an ASE, or other safety
concern.
(6) Approves exemptions from requirements of this
Order for an accelerator facility or module that
does not have the potential for more than minor
onsite or more than negligible offsite impacts to
workers, the public, or the environment.
(7) Ensures that the CRD or alternative standard,
consistent with paragraph 3b(2), is incorporated
into the contract of each affected site/facility
management contractor through the cognizant
contracting officer.
6. CONTACT. Questions concerning this Order should be addressed
to the Office of Science, 301-903-6800.
BY ORDER OF THE SECRETARY OF ENERGY:
KYLE E. McSLARROW
Deputy Secretary
ATTACHMENT 1
PRIMARY DEPARTMENT OF ENERGY ORGANIZATIONS
TO WHICH DOE O 420.2B, Safety of Accelerator Facilities, IS
APPLICABLE
Office of the Secretary
Office of the Chief Information Officer
Office of Civilian Radioactive Waste Management
Office of Congressional and Intergovernmental Affairs
Office of Counterintelligence
Departmental Representative to the Defense Nuclear Facilities
Safety Board
Office of Economic Impact and Diversity
Office of Electric Transmission and Distribution
Office of Energy Assurance
Office of Energy Efficiency and Renewable Energy
Energy Information Administration
Office of Environment, Safety and Health
Office of Fossil Energy
Office of General Counsel
Office of Hearings and Appeals
Office of Independent Oversight and Performance Assurance
Office of Inspector General
Office of Intelligence
Office of Legacy Management
Office of Management, Budget and Evaluation and Chief Financial
Officer
National Nuclear Security Administration
Office of Nuclear Energy, Science and Technology
Office of Policy and International Affairs
Office of Public Affairs
Office of Science
Secretary of Energy Advisory Board
Office of Security
Office of Security and Safety Performance Assurance
Bonneville Power Administration
Southeastern Power Administration
Southwestern Power Administration
Western Area Power Administration
ATTACHMENT 2
CONTRACTOR REQUIREMENTS DOCUMENT
DOE O 420.2B, Safety of Accelerator Facilities
Regardless of the performer of the work, the contractor is
responsible for compliance with the requirements of this
Contractor Requirements Document (CRD). The contractor is
responsible for flowing down the requirements of this CRD to
subcontracts at any tier to the extent necessary to ensure the
contractor’s compliance with the requirements. In doing so, the
contractor must not unnecessarily or imprudently flow down
requirements to subcontractors. That is, the contractor will
ensure that it and its subcontractors comply with the
requirements of this CRD to the extent necessary to ensure the
contractor’s compliance and only incur costs that would be
incurred by a prudent person in the conduct of competitive
business.
The following items are required of the contractor organization.
1. Safety Assessment Document (SAD). A SAD must—
a. identify hazards and associated onsite and offsite
impacts to workers, the public, and the environment
from the facility for both normal operations and
credible accidents;
b. contain sufficient descriptive information and
analytical results pertaining to specific hazards and
risks identified during the safety analysis process to
provide an understanding of risks presented by the
proposed operations;
c. provide appropriate documentation and detailed
descriptions of engineered controls (e.g., interlocks
and physical barriers) and administrative measures
(e.g., training) taken to eliminate, control, or
mitigate risks of operation;
d. include or reference a description of facility
function, location, and management organization in
addition to details of major facility components and
their operation;
e. be prepared as a single document addressing the hazards
of the entire accelerator facility or as separate SADs
prepared for discrete modules of the facility such as
injectors, targets, experiments, experimental halls,
and other type modules; and
f. be maintained current and consistent with the
administrative control measures and physical
configuration of the facility and major safety
equipment.
2. Accelerator Safety Envelope (ASE).
a. A documented ASE must define the set of physical and
administrative bounding conditions for safe operations,
based on the safety analysis documented in the SAD.
b. Any activity violating the ASE must be terminated
immediately and the activity must not be restarted
before the Department of Energy (DOE)/National Nuclear
Safety Administration (NNSA) has been notified.
3. Unreviewed Safety Issues. Activities that involve unreviewed
safety issues must not be performed if significant safety
consequences could result from either an accident or a
malfunction of equipment that is important to safety and for
which a safety analysis has not been performed. Activities
involving identified unreviewed safety issues must not
commence before DOE/NNSA has provided written approval.
4. Accelerator Readiness Reviews (ARRs). ARRs must be performed
before approval for commissioning and routine operation and
as directed by the DOE cognizant Secretarial Officer/NNSA
Deputy Administrator or a DOE/NNSA field manager.
5. Training and Qualification.
a. Training and qualification requirements must be
established for each individual at an accelerator
facility whose activities could affect safety and
health conditions or whose safety and health could be
affected by facility activities. Training and
qualification must be documented and kept current.
b. Only appropriately trained and qualified personnel, or
trainees under the direct supervision of trained and
qualified personnel, are permitted to perform tasks
that may affect safety and health.
c. All personnel assigned to or using the accelerator
facility (including emergency response personnel) must
be trained in the safety and health practices and
emergency plans consistent with their involvement and
the hazards present.
6. Written Procedures.
a. Written procedures for conducting activities safely
must be maintained; must be clear, current, and
consistent with management systems and the
configuration of the facility and equipment; and must
be approved by the facility contractor’s senior line
management who are actively involved in the day-to-day
operation of the facility.
b. Procedures must include descriptions of the tasks to be
performed; safety and health precautions and controls;
and requirements for initial conditions to be verified,
operating conditions to be maintained, and data to be
recorded, as applicable.
c. At a minimum, the contractor must prepare procedures
for—
(1) operation startup,
(2) normal operation,
(3) emergency conditions,
(4) conduct of maintenance,
(5) approval and conduct of experiments,
(6) review and approval of facility modifications,
(7) management of safety-related changes, and
(8) control of facility access.
7. Internal Safety Review System.
a. An internal safety review system must be established
and maintained to periodically assess and document the
condition of the facility, equipment, and engineered
safety systems.
b. Appropriateness and implementation of procedures,
administrative controls, and personnel training and
qualifications must be periodically reviewed and
documented by the internal safety review system.
8. Shielding Policy. The contractor must approve and implement
a written statement of the shielding policy for ionizing and
nonionizing radiation.
_______________________________
1The head of a field office or the head of a regional office of a
federally staffed laboratory.