46 C.F.R. Subpart C—Plan Approval
Title 46 - Shipping
(a) Except as provided in paragraph (b) of this section, this subpart applies to each vessel. (b) This subpart does not apply to any of the following vessels unless the stability of the vessel is questioned by the OCMI: (1) A passenger vessel that— (i) Is less than 100 gross tons; (ii) Is less than 65 feet (19.8 meters) LOD measured over the weather deck; and (iii) Carries 49 or less passengers. (2) A deck cargo barge that complies with the requirements in §174.020 of this chapter. (3) A tank vessel that only carries a product listed in §30.25–1 of this chapter and that is less than 150 gross tons. (4) A tank barge that— (i) Operates only in rivers or lakes, bays, and sounds service; (ii) Does not have to meet 33 CFR part 157, subpart B; and (iii) Only carries a product listed in §30.25–1 of this chapter. (5) A sailing school vessel that is an open boat that complies with the requirements in §173.063(e) of this subchapter. [CGD 79–023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 83–005, 51 FR 923, Jan. 9, 1986] (a) Except as provided in paragraph (b) of this section, each applicant for an original certificate of inspection and approval of plans must also submit three copies for plan review being conducted by the Coast Guard Marine Safety Center or four copies for plan review being conducted by the American Bureau of Shipping (ABS) of each of the following plans: (1) General arrangement plan of decks, holds, and inner bottoms including inboard and outboard profiles. (2) Lines. (3) Curves of form. (4) Capacity plan showing capacities and vertical, longitudinal, and transverse centers of gravity of stowage spaces and tanks. (5) Tank sounding tables showing— (i) Capacities, vertical centers of gravity, and longitudinal centers of gravity in graduated intervals; and (ii) Free surface data for each tank. (6) Draft mark locations including longitudinal location and vertical reference points. (b) Each small passenger vessel that is designed to comply with the alternate intact stability requirements in §178.320 of this subchapter and the simplified method of spacing main transverse watertight bulkheads in §179.220 of this subchapter does not have to submit the plans required by paragraph (a) of this section. [CGD 79–023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 85–080, 61 FR 944, Jan. 10, 1996; CGD 95–028, 62 FR 51217, Sept. 30, 1997] Before issuing an original certificate of inspection, the following number of copies of the stability booklet required by §170.110 must be submitted for approval; three copies for plan review being conducted by the Coast Guard Marine Safety Center or four copies for plan review being conducted by the ABS. [CGD 95–028, 62 FR 51217, Sept. 30, 1997] If a stability test is to be performed, a stability test procedure that contains the information prescribed in §170.185(g) must be submitted to the Coast Guard Marine Safety Center or the ABS at least two weeks before the test. [CGD 95–028, 62 FR 51217, Sept. 30, 1997] (a) Except as provided in §170.098, all calculations required by this subchapter must be submitted with the plans required by §170.075. (b) If it is necessary to compute and plot any of the following curves as part of the calculations required in this subchapter, these plots must also be submitted: (1) Righting arm or moment curves. (2) Heeling arm or moment curves. (3) Cross curves of stability. (4) Floodable length curves. Certain rules in this subchapter require specific approval of equipment or arrangements by the Commandant, OCMI, or Coast Guard Marine Safety Center. These approval determinations will be made as a part of the plan review process. When plan review is conducted by the ABS, ABS is authorized to make the approval. [CGD 95–028, 62 FR 51217, Sept. 30, 1997] The following data must be submitted with the plans required by §170.075 if the vessel is engaged in lifting and is required to comply with subpart B of part 173 of this chapter: (a) A graph of maximum hook load versus maximum crane radius. (b) A table of crane radius versus the maximum distance above the main deck to which the hook load can be raised. (c) A table showing maximum vertical and transverse moments at which the crane is to operate. The plans, information, and calculations required by this subpart must be submitted to one of the following: (a) The Marine Safety Office in the zone where the vessel is to be built or altered. (b) Commanding Officer, U.S. Coast Guard Marine Safety Center, 400 Seventh St., SW., Washington, DC 20590–0001. (c) The American Bureau of Shipping (ABS), Two World Trade Center, 106th Floor, New York, NY 10048. (d) The American Bureau of Shipping (ABS), ABS Plaza, 16855 North Chase Dr., Houston, TX 77060–6008. [CGD 95–028, 62 FR 51217, Sept. 30, 1997]
Title 46: Shipping
PART 170—STABILITY REQUIREMENTS FOR ALL INSPECTED VESSELS
Subpart C—Plan Approval
§ 170.070 Applicability.
§ 170.075 Plans.
§ 170.080 Stability booklet.
§ 170.085 Information required before a stability test.
§ 170.090 Calculations.
§ 170.093 Specific approvals.
§ 170.095 Data submittal for a vessel equipped to lift.
§ 170.100 Addresses for submittal of plans and calculations.
