(a) A vessel shall not be permitted to transit the Canal if she:

(1) Has a list of more than 10 degrees; (2) Is so tender or otherwise so loaded as to dangerously affect her stability or maneuverability; or

(3) Is so trimmed as to dangerously affect her maneuverability.

(b) A vessel having a list of between 3 degrees and 10 degrees, or which is so loaded or so trimmed as to adversely affect her maneuverability, may be permitted to transit in the discretion of the Port Captain, provided the Master thereof, in the presence of the Pilot, signs an undertaking, for the said vessel, her owners, operators, or any other persons having any interest in her, and for himself, releasing the Panama Canal Company from and indemnifying it against, any loss, damage, or liability incurred by the Panama Canal Company under, or in respect to:

(1) Sections 291 through 297, inclusive, of Title 2 of the Canal Zone Code (76A Stat. 23-25),

(2) Panama Canal Company or Canal Zone Government property, and

(3) Panama Canal Company or Canal Zone Government employees under the Federal Employees' Compensation Act, to the extent and in the proportion that such failure to meet the requirements of this section proximately causes or contributes to the casualty and resulting damages.

33-615 O-65-2

§ 4. 3a

(c) Nothing shall be done, or permitted to be done, by the Master or any member of the crew, which would materially alter the trim or draft of a vessel while it is transiting the Canal, without the prior, express approval of the Pilot. (§ 4.11)

[29 F.R. 5680, Apr. 29, 1964]

§ 4.3a

Determination of excessive draft. CODIFICATION: §4.3a was added 25 F.R. 2799, Apr. 2, 1960, and revoked, 25 F.R. 7316, Aug. 4, 1960.

§ 4.10b Towing of certain vessels required.

Any vessel arriving at a terminal port of the Panama Canal for transit and having a mean draft in excess of that allowed under the Load Line Regulations, for the tropical zone, applicable for the voyage on which the vessel is engaged as determined by American Bureau of Shipping, Lloyd's Register or other acceptable certifying agency, shall be required to take the services of a Panama tug or tugs from Pacific entrance Channel buoys 1 and 2 to Gamboa Reach, from the north end of Gatun Locks to buoy 3 in Cristobal harbor, and vice

[Paragraphs (q) and (r) added by C.Z.O. 71, 29 F.R. 17903, Dec. 17, 1964]

§ 4.21

Entry and clearance of vessels.

(a) An arriving vessel shall be entered either at the port of Balboa or the port of Cristobal, depending upon the vessel's port of arrival. A vessel is entered by the Canal authorities upon the report of the boarding officer, and it is not necessary for the Master to come ashore for that purpose. In the discretion of the Port Captain at the port of entry, or such other official as may be designated by the Governor, a vessel may be denied entry, or may be denied the use, in whole or in part, of Canal Zone port facilities, for failure to have: (1) A valid National Register;

(2) A proper clearance from its last port of call; or

(3) The cargo documents required by § 4.20.

Except in bona fide cases of distress, a vessel that is denied authorization to enter shall be denied authorization to transit the Canal and shall be required immediately to depart from Canal Zone waters. A vessel whose use of Canal Zone port facilities has been restricted pursuant to the provisions of this section shall be deemed to have been provisionally entered and its use of Canal Zone port facilities shall be contingent upon its strict adherence to the limitations imposed. For any failure to comply strictly with such limitations, such a vessel may be required, in the discretion of the cognizant Port Captain or other official designated by the Governor, to depart immediately from Canal Zone waters.

(b) Any vessel that has entered or provisionally entered the Canal Zone shall, prior to its departure therefrom, obtain clearance from the Port Captain at the port of departure or such other official as may be designated by the Governor. Clearance shall be issued only after the cognizant Port Captain or other designated official has satisfied himself that:

(1) All documents and statistical data required for entry or provisional entry by the Canal authorities respecting the vessel and its cargo and passengers have been furnished;

(2) Tolls and all other charges for services or supplies furnished by the Canal Zone Government or the Panama

Canal Company have been paid or the payment secured;

(3) The vessel has complied with the quarantine, customs and exclusion laws, rules and regulations of the Canal Zone Government, and the laws, rules and regulations governing the shipping, discharging and protection of seamen.

In the case of a vessel provisionally entered, the fact of such provisional entry, and the reason therefor, shall be noted on its clearance. No clearance shall be given to a vessel to which entry has been denied.

(2 C.Z.C. section 1331, 76A Stat. 46; E.O. 9746, 11 F.R. 7329, 3 CFR 1943-1948 Comp., as amended by E.O. 10595, 20 F.R. 819, 3 CFR 242, 1954-1958 Comp)[C.Z.O. 71, 29 F.R. 17903, Dec. 17, 1964]

Subpart D-Requirements Concerning Officers, Crew, Equipment, and Passengers

§ 4.42 Construction, number and location of chocks and bitts.

(a) All chocks for towing wires shall be of heavy closed construction and shall have a convex bearing surface with a radius of not less than 7 inches (180 millimeters). The convex surface shall extend so that a wire from the bitt or from the towing locomotive through the chock, shall be tangent to the 7-inch (180 millimeter) radius at any angle up to 90 degrees with respect to a straight line through the chock.

(b) No part of the vessel which may be contacted by the towing wires, at any angle, shall have less than a 7-inch radius.

(c) Chocks designated as single chocks shall have a throat opening of not less than 100 square inches (750 square centimeters) in area (Preferred dimensions are 12 x 9 inches (300 x 250 millimeters).) and shall be capable of withstanding a strain of 70,000 pounds (32,000 kilograms) on a towing wire from any direction.

(d) Chocks designated as double chocks shall have a throat opening of not less than 140 square inches (875 square centimeters) in area (Preferred dimensions are 14 x 10 inches (350 x 250 millimeters).) and shall be capable of withstanding a strain of 140,000 pounds (64,000 kilograms) on the towing wires from any direction.

(e) Use of roller chocks is permissible provided they are in good condition, meet all of the requirements for solid chocks as specified in paragraph (a), (b), (c) and (d) of this section, as the case may be, and are so fitted than transition from the rollers to the chock body will prevent damage to towing wires.

(f) Each single chock shall have an accompanying bitt capable of withstanding a strain of 70,000 pounds (32,000 kilograms).

(g) Each double chock located at the stem and at the stern, in accordance with paragraph (h) of this section shall have two pairs of heavy bitts with each bitt of each pair capable of withstanding a strain of 70,000 pounds (32,000 kilograms). Other double chocks shall have a pair of heavy bitts with each bitt capable of withstanding a strain of 70,000 pounds (32,000 kilograms).

(h) All vessels, except a vessel using her own lines in accordance with § 4.43a (a) (1), (2), shall be fitted with a double chock set athwartships right in the stem and another double chock set athwartships right in the stern, except that on vessels of less than 85 feet beam, two single chocks may be substituted for each double chock required by this subsection. If such substitution is made, the single chocks shall be placed, port and starboard, not more than 8 feet abaft the stem or 10 feet forward of the stern, provided that these chocks are not more than 10 feet from the center line of the vessel.

(i) Vessels under 200 feet in length and not exceeding 30 feet in beam shall have a double chock at the stem and stern or two single chocks may be substituted for each double chock. If such substitution is made, the single chocks shall be placed, port and starboard, not more than 8 feet abaft the stem or 10 feet forward of the stern.

(j) Vessels 200 to 500 feet in length and not exceeding 75 feet beam shall have a double chock at the stem and at the stern or two single chocks at the bow and stern, port and starboard, not more than 8 feet abaft the stem or 10 feet forward of the stern and shall have two additional single chocks, port and starboard, 30 to 50 feet abaft the stem and 30 to 50 feet forward of the stern.

(k) Vessels 500 to 600 feet long or between 75 and 85 feet in beam shall have a double chock at the stem and stern or two single chocks at the bow and stern, port and starboard, not more than 8

feet abaft the stem or 10 feet forward of the stern and in addition shall have a double chock, port and starboard, 40 to 50 feet abaft the stem and a single chock, port and starboard, 40 to 50 feet forward of the stern.

(1) Vessels 600 to 670 feet long or between 85 and 90 feet in beam shall have a double chock at the stem and stern, a double chock, port and starboard, 40 to 50 feet abaft the stem; a single chock, port and starboard, 80 to 90 feet abaft the stem and a single chock, port and starboard, 40 to 50 feet forward of the stern.

(m) Vessels over 670 feet long or over 90 feet in beam shall have a double chock at the stem and stern; a double chock, port and starboard, 40 to 50 feet abaft the stem; a single chock, port and starboard, 80 to 90 feet abaft the stem; a double chock, port and starboard, 40 to 50 feet forward of the stern and a single chock, port and starboard, 80 to 90 feet forward of the stern.

(n) On vessels over 90 feet in beam, in order to obtain efficient lateral control from locomotives and to prevent the towing wires from fouling wall coping and miter gates, all chocks shall be placed on the raised sections of the ship (forecastle and poop deck) even though the distance of such chocks from the bow and the stern may be less than specified in this section.

(o) A vessel using her own lines, in accordance with § 4.43a (a) (1) and (2), shall have a chock arrangement similar to that described in paragraph (i) of this section except that the chocks need only be single chocks or, if approved by the Chief, Navigation Division, of lesser strength.

(p) Any vessel which fails to meet the requirements of this section may be denied transit. If the Marine Director or his representative decides that the vessel can be handled without undue danger to equipment or to personnel, notwithstanding her failure to comply with other requirements of this section, the vessel may be allowed to transit after the Master thereof, in the presence of the Pilot, signs an undertaking, for the said vessel, her owners, operators, or any other persons having any interest in her, and for himself, releasing the Panama Canal Company from and indemnifying it against, any loss, damage, or liability incurred by the Panama Canal Company under, or in respect to:

(1) Sections 291 through 297, inclusive, of Title 2 of the Canal Zone Code (76A Stat. 23-25),

(2) Panama Canal Company or Canal Zone Government property, and

(3) Panama Canal Company or Canal Zone Government employees under the Federal Employees' Compensation Act, to the extent and in the proportion that such failure to meet the requirements of this section proximately causes or contributes to the casualty and resulting damages (§ 411).

[29 F.R. 5680, Apr. 29, 1964]

§ 4.43a Passing through the locks: use of towing locomotives; use of ship's engines.

(a) A vessel passing through the locks shall normally be assisted by electric towing locomotives using steel wire towing lines. A vessel may be permitted to pass through the locks under her own power in the following circumstances:

(1) A small vessel up to 125 feet in length may be handled with her own manila, hemp or synthetic fiber lines along the wall, if her structure will permit her landing against the wall;

(2) A small vessel not over 100 feet in length, having good maneuvering characteristics, may be handled with her own manila, hemp or synthetic fiber lines in the center of the chamber.

(b) A vessel passing through the locks without a Pilot aboard, in accordance with the provisions of § 4.23, shall be under the direction of the lockmaster, who may authorize the use of the vessel's engines in the locks.

(c) When a vessel has a Pilot aboard, the use of her engines shall be under the direction of the Pilot. After towing wires from the towing locomotives have been placed aboard a vessel, her engines may be used to the extent considered necessary or desirable by the Pilot. (§ 4.11)

[29 F.R. 5680, Apr. 29, 1964] Prior Amendments 1960: 25 F.R. 5184, June 10. $ 1.13b

Meals to be furnished by vessel in certain cases,

Vessels shall furnish meals to Panama Canal pilots without charge during the ship's regular meal hours and shall furnish a meal to the pilot between 2200 hours and 0400 hours if the vessel is transiting the Canal during such hours.