read chapter 22 of the Navy Occupational Safety and
Health (NAVOSH) Program Manual, (OPNAVINST
5100.23) for shore operations, and chapter B9 of the
NAVOSH Program Manual for Forces Afloat
The tag-out bill is a system of documents used to
save lives and to prevent unnecessary damage to
equipment. It uses CAUTION tags and DANGER tags,
out-of-calibration labels, and out-of-commission labels
to let you know when a specific switch, circuit breaker,
piece of equipment, electronic system, or plumbing
valve should be either operated with extra care or
completely left alone.
As an ET, you wont be securing many plumbing
valves. But, you will be securing a lot of power switches
and circuit breakers to do preventive and corrective
maintenance on electronic systems and equipments. Its
not possible in this topic to identify all situations
requiring tag-out. However, here are a few situations
that do require you to tag out the equipment:
Working Aloft or Over the Side: Since many
areas on the exterior of a ship are inaccessible from
decks or built-in work platforms, it becomes necessary
to go aloft or over the side to reach these areas.
The greatest hazard associated with working aloft
or over the side is the danger of a fall. Other hazards
include the dropping of objects on (or by) personnel,
radiation burns, and asphyxiation. When working aloft,
the following must be observed:
Do not go aloft on masts, maces, stacks, or king
posts or be suspended over the side by a crane without
first obtaining written permission from the O.O.D. in
the form of a working aloft checklist.
Wear supplied air respirators when working near
stacks or exhaust which are actively discharging gases.
Use a climber sleeve assembly in conjunction
with the safety harness when going aloft where a
climber safety rail is installed.
Before commencement of work and every 15
minutes thereafter, pass a verbal warning over the 1
MC, DO NOT ROTATE ANTENNAS, ENERGIZE
OR RADIATE ANY ELECTRICAL OR ELEC-
TRONIC EQUIPMENT WHILE PERSONNEL ARE
WORKING ALOFT. If personnel aloft are in the vicin-
ity of the stacks add, DO NOT BLOW TUBES OR
LIFT SAFETY VALVES WHILE PERSONNEL
ARE WORKING ALOFT.
Inform ships in the vicinity that personnel will be
working aloft to ensure they take appropriate action on
operation of electrical or electronic equipment.
Departments concerned shall ensure that all ra-
dio transmitters and radars that pose radiation hazards
are placed in the STANDBY position and a sign placed
on the equipment that reads:
Position a safety observer on deck near the work
being performed. Outfit the safety observer with a
safety harness, lanyards, and climber safety sleeve to
permit rapid emergency assistance aloft if required. The
safety observer shall keep the deck area beneath the
work aloft free of unnecessary personnel.
Now, refer to Navy Occupational Safety and Health
(NAVOSH) Program Manual for Forces Afloat,
(OPNAVINST 5100.19), and read Chapter C8. Then
return to this manual.
Corrective Maintenance: When youre working
on equipment that must have its power secured, and
theres a chance someone else could inadvertently
reapply power while you are still working on it.
Preventive Maintenance: When planned
maintenance system (PMS) maintenance requirement
cards (MRCs) or equipment technical manuals direct
you to secure electrical power.
Danger Exists: When you are operating an
equipment that could endanger someones life. This
could apply to both mechanical and electrical faults.
Commanding officers are responsible for the well-
being of their people and the operational readiness of
their equipments. They are ultimately responsible for
making sure their personnel follow the appropriate tag-
out procedures. To help do this, they assign authorizing
officers who have authority to sign, issue, and clear tags
and labels. There is usually one authorizing officer for
each department. The authorizing officer can be a
commissioned officer, chief petty officer, or petty
officer. When the affected system will be rendered out-
of-commission as a result of the tag out action, the
Authorizing Officer shall obtain permission of the CO
when appropriate and the cognizant Department Head