VES-3-16-CO:R:P:C  109576 LLB
Cheryl Dendy, Esq.
            Sub Sea International, Inc.
            1600 Canal Street
            P.O. Box 61780
            New Orleans, Louisiana  70161
            RE:  Applicability of the Coastwise Laws to Deep Sea Diving
                 Operations Conducted from a Non-Coastwise-Qualified Vessel
                 on the Outer Continental Shelf
            Dear Ms. Dendy:
                 Reference is made to your letter of June 15, 1988, in
            which you request that we rule upon the proposed use of a
            foreign-flag vessel to support deep sea diving operations to be
            conducted on the outer Continental Shelf.
            FACTS:
                 It is proposed that a foreign-flag vessel will be moored
            in Houston, at which time a "saturation diving system" would be
            placed aboard and welded to the deck.  The system consists, in
            part, of a diving bell meant to assist in deep dive operations.
                 The vessel will then proceed to a point on the outer
            Continental Shelf in the Gulf of Mexico where it will take up a
            stationary position.  It will maintain position by use of a
            "dynamic positioning system", whereby engines and thrusters are
            employed which are controlled by surface and subsurface
            positioning controls.  There will be no anchors, chains, or
            cables deployed to hold the vessel in position.
                 Once in position, the diving bell would be launched and
            held off the bottom.  Divers would then be deployed and would
            swim to previously laid flexible pipelines.  The ends of these
            would be pulled together and bolted with flanges.  This
            procedure would be repeated for numerous cables, and would
            proceed for a period of up to two months until all pipes were
            connected.  The vessel would then proceed back to  port where
            the diving system would be removed by having the weld spots
            burned off.
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            ISSUE:
                 Whether the coastwise laws are violated when a non-
            qualified vessel is utilized to launch and support deep sea
            diving operations on the outer Continental Shelf, while
            stationary but not connected to the sea bed in any fashion.
                 Title 46, United States Code App., sections 289 and 883
            (46 U.S.C. App. 289 and 883), respectively prohibit the
            transportation of passengers or merchandise between coastwise
            points in vessels which are not qualified to engage in the
            coastwise trade.  The vessel whose use is proposed in this case
            is not so qualified by virtue of being registered under the
            flag of a foreign nation.
                 The remaining issues concern whether the movement between
            Houston and stationary location on the outer Continental Shelf
            is a movement between coastwise points and whether the proposed
            movement involves a transportation of passengers or
            merchandise.
                 Section 4(a) of the Outer Continental Sheld Lands Act of
            1953, as amended (43 U.S.C. 1333 (a)) (OCSLA), provides, in
            pertinent part, that the laws of the U.S. are:
                      ...extended to the subsoil and seabed of the
                      outer Continental Shelf and to all artificial
                      islands, and all installations and other devices
                      permanently or temporarily attached to the
                      seabed, which may be erected thereon for the
                      purpose of exploring for, developing, or
                      producing resources therefrom, or any such
                      installation or other device (other than a ship
                      or vessel) for the purpose of transporting such
                      resources, to the same extent as if the outer
                      Continental Shelf were an area of exclusive
                      Federal jurisdiction located within a State...
                 As discussed earlier, the vessel in question would not be
            tethered or anchored in any way to the seabed of the outer
            Continental Shelf.  Neither would the diving bell come into
            contact with the seabed, or engage in any extraction,
            exploration, or production operations.  Accordingly, the vessel
            does not become a point on the outer Continental Shelf to which
            the coastwise laws are extended by the OCSLA, and neither is
            there any movement between Houston and a second coastwise
            point.
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                 Even if it were to be determined that the
            contemplated movement was between coastwise points, the
            divers and crew, and the equipment carried aboard the
            vessel, to include the diving bell and its attendant
            equipment, would not be considered passengers or
            merchandise within the contemplation of sections 289 and
            883, respectively.
                 For purposes of interpreting the coastwise laws, it
            is provided in section 4.50(b), Customs Regulations (19
            CFR 4.50(b)), that:
                      (b) A passenger...is any person carried on
                      a vessel who is not connected with the
                      operation of such vessel, her navigation,
                      ownership, or business.
            It is our understanding that all personnel aboard the
            vessel are connected with its operation and are not,
            therefore, passengers.  Likewise, it does not appear that
            any of the materials to be carried aboard the vessel, to
            include the diving bell and its attendant equipment, is
            merchandise within the contemplation of section 883.
                 We view that activities of the vessel, diving bell,
            and divers to be closely analogous to a pipe-laying
            operation or, even more closely, a pipe repair operation.
            Such operations have been held by Customs to be
            permissible non-coastwise trade activities.
                 It is important to note, however, that your plans may
            call for the vessel to arrive at a port other than Houston
            upon completion of the operation, for the purpose of
            discharging the diving bell and equipment.  Since the
            coastwise laws prohibit either direct or indirect
            movements, it would be a violation were the equipment to
            be discharged at any point other than the precise point at
            which it was taken aboard at the beginning of the voyage.
            You must, therefore, return to the place of loading in
            order to discharge the equipment and personnel.
            HOLDING:
                 The use of a foreign-flag vessel to transport a
            diving bell, its equipment, and divers from a coastwise
            point to the outer Continental Shelf for the purpose of
            supporting diving operations from a stationary, unanchored
            position is permissible under the coastwise laws.  The
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            vessel must, however, return to the same location at which
            it took the equipment and personnel aboard in order to
            lawfully discharge the equipment and personnel
                                              Sincerely,
B. James Fritz
                                              Chief
                                              Carrier Rulings Branch
LLBURTON:eav:  7/11/88