Fatigue Management
Rule
Russell Smith
Nuclear Energy Institute (NEI)
Implementation of the Rule
 The rule was published in the Federal
Register on March 31, 2008
 Fatigue rule portion of rule (Subpart I)
will be required to be implemented
prior to October 1, 2009
Implementation Guidance

NEI 06-11, Managing Personnel Fatigue at
Nuclear Power Reactor Sites

NRC Regulatory Guide 5.73
Purpose of the Rule
 To establish requirements for managing
worker fatigue at operating power plants.
 Fatigue is defined in the rule as the
degradation in an individual’s cognitive
and motor functioning resulting from
inadequate rest.
Applicability for Fatigue Management
Fatigue management requirements, with
exception of work hour controls, apply to the
following individuals:
 All persons who are granted unescorted access to
nuclear power reactor protected areas, and
 All persons who are required to physically report to
the Technical Support Center or Emergency
Operations Facility, in accordance with the site
Emergency Plan and procedures.
Applicability for Work Hour Restrictions
 Operating personnel operating (or directing
operations for) systems and components that are
risk significant
 Maintenance personnel working on (or directing
activities for) systems and components that are
risk significant
 Health Physics or Chemistry personnel
performing duties which are part of the on-site
emergency response organization minimum shift
complement
 Fire Brigade Leader
 Security personnel
Policy and Procedure
 The licensee program shall establish a policy for
the management of fatigue for all individuals who
are subject to the licensee’s Fitness-For-Duty
(FFD) program and incorporate the guidance into
the site or corporate written FFD policy
 The licensee program shall develop, implement,
and maintain procedures for subpart I
requirements
Covered Work means the following:
Operating or on-site directing of the operation of
systems and components that a risk-informed evaluation
process has shown to be significant to public health and
safety,
Performing maintenance or on-site directing of the
maintenance of structures, systems, and components
(SSCs) that a risk-informed evaluation process has
shown to be significant to public health and safety,
Covered work (continued):
Performing Health Physics or Chemistry duties required
as a member of the on-site emergency response
organization minimum shift complement,
Performing the duties of a Fire Brigade member who is
responsible for understanding the effects of fire and fire
suppressants on safe shutdown capability, and
Performing security duties as an armed security force
officer, alarm station operator, response team leader, or
watchperson, hereinafter referred to as Security
personnel.
Work hours means the amount of time an individual
performs duties for the licensee. This includes all work
hours, with the following exceptions:
• Shift turnover time.
• Within-shift break and rest periods in which there is
reasonable opportunity and accommodations for
restorative sleep (e.g., a nap) may be excluded.
• Incidental duties performed off-site provided the total
duration of the work does not exceed a nominal 30
minutes during any single break period may be excluded.
DEFINITIONS:
Day-off means a calendar day in which an individual
does not start a work shift.
On-site means within the owner-controlled area of
the nuclear power plant.
Maintenance means the following on-site
maintenance activities: modification, surveillance,
post-maintenance testing, and corrective and
preventive maintenance.
DEFINITIONS:
Shift Cycle means a series of consecutive work
shifts and days off that is planned by the licensee to
repeat regularly, thereby constituting a continuous
shift schedule. A shift cycle cannot exceed 6 weeks
for the purposes of calculating days off.
Unit outage means that the reactor unit is
disconnected from the electrical grid.
Work Hours Restrictions
 Ceilings
 Breaks
 Minimum Days Off
Ceilings – Online and Outages
•
16 work hours in any 24-hour period
•
26 work hours in any 48-hour period
•
72 work hours in any 7-day period
Breaks – Online and Outages
• 10-hour break between work periods
• One 34-hour break every 9 days
Minimum Days Off - Online
Activity
Maintenance
Operations, HP,
Chemistry, Fire
Brigade
Security
8- hour shift
Days off*
1 day off per
week
1 day off per
week
10- hour shift
Days off*
2 days off per
week
2 days off per
week
12- hour shift
Days off*
2 days off per
week
2.5 days off per
week
1 day off per
week
2 days off per
week
3 days off per
week
Minimum Days Off - Outage
Activity
Maintenance
Operations, HP,
Chemistry, Fire
Brigade
Security
8- hour shift
Days off
1 day off per
week
3 days off in
each successive
(i.e., non-rolling)
15-day period
4 days off in
each successive
(i.e., non-rolling)
15-day period
10- hour shift
Days off
1 day off per
week
3 days off in
each successive
(i.e., non-rolling)
15-day period
4 days off in
each successive
(i.e., non-rolling)
15-day period
12- hour shift
Days off
1 day off per
week
3 days off in
each successive
(i.e., non-rolling)
15-day period
4 days off in
each successive
(i.e., non-rolling)
15-day period
Waivers
 A licensee may grant waivers to the individual work hour
limits provided:
• A Security Shift Manager determines that a waiver
is necessary to maintain site security; or
• An Operations Shift Manager determines that a
waiver is necessary to mitigate or prevent a
condition adverse to safety; or
• A senior level manager with requisite signature
authority makes either determination
Administrative
Requirements
Proposed Rule – Self
Declaration
 If an individual declares he/she is too fatigued to safely
perform their duties during any part of the working tour, a
fatigue assessment must be performed
– May forego the fatigue assessment if a 10-hour rest
break is given before the individual returns to work
 If an individual is working under a waiver, and declares
he/she is too fatigued to safely perform their duties, they
MUST be removed from risk significant duty
Fatigue Assessments
 Required For:
– FOR CAUSE
– SELF DECLARATION
– POST EVENT
– FOLLOW UP
 Fatigue Assessments
– IDENTIFICATION OF CONDITIONS
– SUPERVISORY ASSESSMENT
Training Requirements
• General Employee
• Supervisor – Waivers
• Supervisors and FFD Personnel –
Fatigue Assessments
REVIEWS
Licensees shall evaluate the effectiveness of
their control of work hours of individuals who are
subject to this section.
At a minimum, licensees shall conduct the
reviews once per calendar year.
REPORTING

Licensees shall report on work hours in the
annual FFD program performance report.
• The number of instances in which each work hour
control was waived for individuals not working on
outage activities.
• The number of instances in which each work hour
control was waived for individuals working on
outage activities.
REPORTING

Licensees shall report on work hours in the
annual FFD program performance report.
• A summary that shows the distribution of waiver
use among the individuals within each category.
• A summary of corrective actions, if any, resulting
from the analyses of these data, including fatigue
assessments.
RECORDS and AUDITS
 Licensees shall retain the records for at least
three years or until the completion of all related
legal proceedings, whichever is later.
 Licensees shall audit the fatigue management
program every 24 months.