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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. 232
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233 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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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.
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