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OCR for page 232
APPENDIX E
TANK BARGE SURVEILLANCE--AN OVERVIEW
The following tables summarize regulations related to the surveil-
lance of unmanned tank barges (while not gas free) during three modes of
operation.
TABLE E-1 Mode I: In Tow/Underway
Applicable
Regulations
Limiting
Conditions
Requirements
Subchapter D
46 CFR 35.01-50(e)
46 CFR 35.01-50(f)(1)
46 CFR 35.05-15(b)(1)
Applies only to tank
barges carrying
flammable liquids
with a Reid vapor
pressure in excess of
25 psi in independent
tanks and liquefied
flammable gases.
Same as above.
None given.
Checked periodically to
insure free of water.
Strict watch of each
tank barge shall be
maintained from towing
vessel.
Same as above.
NOTES: 46 CFR 31.15-5 requires that towing vessels with tank barges
in tow shall carry and have on board at all times either a licensed
officer or certificated tankerman.
46 CFR 35.01-50(f)~2) prohibits towing vessels from leaving barges
with independent cargo tanks, carrying any amount of flammable liquid or
liquefied flammable gas, "unattended.'' No exception or alternative is
provided in the regulations.
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TABLE E-1 continued
Subchapter O
46 OFR 151.45-2(f)(1)
Cargo tanks contain
any amount of liquid
or gaseous subchapter
O cargo which requires
a type I or II hull.
Strict watch of
each tank barge
shall be maintained
from towing vessel
while underway.
NOTE: 46 CFR 151.45-2(f)~2) prohibits towing vessels from leaving
tank barges, carrying subchapter O cargoes that require a type I or II
hull, ''unattended." No exception or alternative provided in the
regulations.
TABLE E-2 Mode II: While Moored (includes fleeted barges)
Applicable
Regulations
. . .
Limiting
Conditions
Requirements
Subchapter D
46CFR 35.01-50(f)(2)
46 CFR 35.01-50(e)
46 CFR 35.05-15(b)(2)
and (b)(3)
*Description of Watchman
46 CRF 35-01-50(f)(2)
46 CFR 35.05-15(b)(2)(i)
Applies only to tank
barges carrying flam-
mable liquids with a
Reid vapor pressure
in
in independent tanks
or any barge carry-
ing a liquefied
flammable gas.
excess of 25
Same as above.
None given.
psi
Barge shall be under
the observation of a
watchman.* Such barges
shall be under
"constant surveil-
lance." No alternative
provided.
Checked periodically to
insure free of water.
Barge shall be under
the observation of a
watchman.* (Also, see
alternative below.)
Watchman may be member of towboat crew, a
terminal employee or other competent person.
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Representative terms from entire chapter:
tank barge
234
*Responsibility of Watchman
46 CFR 35.01-50(f)42) Watchman is responsible for security of
46 CFR 35.05-15(b)~2) tankbarge and for keeping unauthorized
persons off the barge.
ALTERNATIVE: 46 CFR 35.05-15(b)~3~(ii) provides for an alterna-
tive. A watchman is not required for moored subchapter D barges that
contain no oil but are not gas free if all cargo tank hatches are
clearly marked in 3-in. letters, 'Danger--Keep Out," and all hatch
covers are closed and dogged down (or otherwise secured) by a tool-
operated device. Hatches are to be secured in such a way that they
cannot be opened with bare hands.
Subchapter O
46 CFR 151.45-2(f) (2)
NOTES: 46 CFR 151
possession and to have
are required by 46 CFR
46 CFR 151. 45 - 2 ~ g)
down, or otherwise secured.
Cargo tanks contain Barge shall be
any amount of liquid under the care of
or gaseous subchapter a watchman.*
O cargo which requires
a type I or II hull.
(See list attached at
end of this chart.)
.45-2(f)~2) requires watchman to have in his
read applicable cargo information carder) that
151.45-2(e).
requires all cargo hatches to be closed, dogged
46 CFR 151.45-2(c) prohibits the opening of any cargo hatch, ullage
hole, or tank cleaning opening (or the leaving open of these) except
when under the supervision of the person in charge.
*Description of Watchman
46 CFR 151.45-2(f)~2) Watchman may be member of towboat crew, a
terminal employee, or other person.
`''
235
TABLE E-3 Mode III:
During Cargo Transfer Operations
Applicable
Regulations
Limiting
Conditions
Requirements
Subchapter D
46 CFR 35. 35-l(b) Not given.
Subchapter O ( chemical cargoes )
46 CFR 151.45-4(a)(1)
46 CFR 151.45-4(a)(2)
Subchapter O (oil products)
33 CFR lS5.810
When cargo being
transferred meets
classification of
flammable or com-
bustible.
When cargo being
transferred does not
meet classification
of flammable or
combustible.
Vessel cargo tanks
contain more than
normal clingage and
unpump able bilge or
sump residues.
A person holding a valid
license as a master, mate
pilot, or engineer or a
certificated tankerman
shall be on duty to
perform transfer
operations. This person
shall be considered the
person in charge of the
transfer operation for the
vessel involved.
(Same requirement as
listed immediately above.)
Person especially quali-
fied in handling specific
product shall be on
duty to perform or
supervise the transfer
operations. This person
shall be considered the
person in charge of the
transfer operation for the
vessel involved.
Vessel operator
maintains surveillance
of tank barge.*
236
33 CFR 156.120(s) Transfer of oil to,
from, or within a
vessel.
Oil shall not be
transferred unless there
is a person in charge on
the transferring vessel or
facility and on the
receiving vessel or
facility, except when
authorized by the
cognizant Captain of the
Port.
33 CFR 156.160(a) In addition to those The critical operations
conditions listed listed to the left shall
immediately above, be conducted under the
when connecting, supervision of the
disconnecting person in charge of the
transfer line/hose, transfer operation aboard
and when "topping the vessel.
offs' any cargo tank.
33 CFR 156.160(b) When starting the The activity listed
flow of oil to or at the left is pro
from a tankbarge. hibited unless and until
such activity is directed
or instructed to start by
the person in charge.
33 CFR 156.160(c) Occurrence (start or The activity listed at the
continue) of an oil left is prohibited unless
transfer to or from the person in charge is in
a tank barge. the immediate vicinity and
immediately available to
the transfer operation.
*This requirement applies to tank vessels
not a transfer operation is in progress.
RELATED REGULATIONS:
33 CFR 155.750
3 3 CFR 15 5 . 750 ( a) ( 3 )
33 CFR 155. 750(a) (4)
33 CFR 155.750(a) (5)
carrying oil whether or
(Contents of oil transfer procedure)
(Number of persons required to be on duty during
transfer operations)
(Duties of each person required to be on duty
during transfer operations)
(Duty assignments for tending vessels moorings
during transfer operations)
237
TABLE E-4 Subchapter O Products Requiring Type I or II Hulls
Acetaldehyde
Acetone cyanohydrin
Acrylonitrile
Adiponitrile
Allyl alcohol
Allyl chloride
Anhydrous ammonia
Aniline
Butadiene (inhibited)
Camphor oil (light)
Carbolic oil
Carbon bisulfide
Chlorine
Chlorohydrins (crude)
Crotonaldehyde
Dichloropropene
Dimethylamine
Epichlorohydrin
Ethyl chloride
Ethyl ether
Ethylene oxide
Hydrofluoric acid (3)
Hydrofluoric chloride (3)
.
Hydrogen fluoride (3)
Methyl bromide
Methyl chloride
Motorfuel antiknock compounds
Nitrobenzene
Phenol
Phosphorus (elemental)
Polymethylene-polyphenyl
isocyanate
Polyvinylbenzltrimethyl
ammonium chloride solution
Isopropylamine
Propylene oxide
Sodium sulfide, hydrosulfide
solutions (H2S greater than
200 ppm)
Sulfur dioxide
Toluene diisocyanate
1, 2,3-Trichloropropane
Triethylamine
Vinyl chloride
Vinylidene chloride
(inhibited)
SOURCE: 46 CFR Table 151.05
238
TABLE E-5 Subchapter O Dangerous Cargoes that Are Not Combustible
or Flammable*
Ammonia, anhydrous
Ammonium hydroxide (NH3,
28% or less)
Butadiene (inhibited)
Carbon dioxide (liquid)
Carbon tetrachloride
Caustic potash solution
Caustic soda solution
Chemical wastes (mixture of
chlorinated hydrocarbons and
caustic materials)
Chlorine
Chlorosulfonic acid
Cresylate spent caustic
Dichloromethane
Dimethylamine
Ethylene dibromide
Ferric chloride solutions
Hydrochloric acid
Hydrochloric acid, spent
(15% or less)
Hydrofluorosilicic acid
(25% or less)
Hydrogen chloride
Hydrogen fluoride
Methylbromide
Methylchloride
Monochlorodifluoromethane
Nitric acid (70% or less)
Perchloroethylene
Polyvinylbenzyltrimethyl
ammonium chloride solution
Sodium chlorate solution
(50% or less)
Sodium sulfide, hydrosulfide
solutions (H2S 15 ppm or
less)
Sodium sulfide, hydrosulfide
solutions (H2S greater than
15 ppm but less than 200 ppm)
Sodium sulfide, hydrosulfide
solutions (H2S greater than
200 ppm)
Sulfur dioxide
Sulfuric acid
Sulfuric acid spent
Trichloroethylene
All other subchapter O dangerous cargoes listed in 46 CFR Table
151.01-lO(b) are combustible or flammable.
