§ 30.1 Basis and application of rules. CODIFICATION: In § 30.1 the phrase "Coast Guard" was substituted for the phrase "Bureau of Marine Inspection and Navigation," by Regulation, Commandant, Mar. 23, 1945, 10 F.R. 3136.

§ 30.3 Definition of terms. Certain terms used in the regulations in this subchapter are defined as follows:

(a) Approved. The term "approved" means approved by the Commandant unless otherwise stated.

(b) Cargo. The term "cargo" means combustible liquid, inflammable liquid, or liquefied inflammable gas unless otherwise stated.

(c) Certificated. The term “certificated" when applied to tank vessels refers to a vessel covered by a certificate of inspection issued by the Coast Guard; when applied to men employed on tank vessels, the term refers to a certificate of ability issued by the Coast Guard.

(d) Classification requirements. The term "classification requirements" means applicable rules and supplementary requirements of the American Bureau of Shipping, or other recognized classification society.

(e) Coastwise. Under this designation shall be included all tank vessels normally navigating the waters of any ocean or the Gulf of Mexico 20 nautical miles or less offshore.

(f) Cofferdam. A "cofferdam" is a space having a width sufficient for ready access, with tight bulkheads on both sides. In the rules in this subchapter, any one of several spaces shall be considered to be equivalent to a cofferdam, as follows:

(1) A cargo pump room.

(2) A tank, either empty or used to carry a liquid having a flash point of 150° F. or above.

(3) A horizontal air space either inclosed and vented or open to the atmosphere.

(g) Combustible liquid. A "combustible liquid" is any liquid having a flash point above 80° F. (as determined from

an open-cup tester, as used for test of burning oils). In the rules in this subchapter, combustible liquids are referred to by grades, as follows:

(1) Grade D. Any combustible liquid having a flash point below 150° F. and above 80° F.

(2) Grade E. Any combustible liquid having a flash point of 150° F. or above. (h) Commandant. The term "Commandant" means the Commandant of the Coast Guard.

(i) District Coast Guard Officer. The term "District Coast Guard Officer" means an officer of the Coast Guard designated as such by the Commandant to command all Coast Guard activities within his district which include the enforcement and administration of Title 52, R. S., acts amendatory thereof or supplemental thereto, rules and regulations thereunder and the inspections required thereby.

(1) Existing tank vessel. An "existing tank vessel" is any tank vessel the construction of which was started prior to November 10, 1936, and shall include any vessel the conversion of which into a tank vessel was started prior to November 10, 1936. [Preceding paragraph, in small type, superseded by following paragraph during period covered by this Supplement]

(j) Existing tank vessel. An "existing tank vessel" is any tank vessel the construction of which was started prior to November 10, 1936, and shall include any vessel the conversion of which into a tank vessel was started prior to November 10, 1936. Tank barges the hulls of which are of materials other than iron or steel for which the plans and specifications for construction or conversion were approved by the Coast Guard prior to September 2, 1945, upon which actual work of construction or conversion was commenced prior to September 2, 1945, and which are issued a certificate of inspection prior to March 2, 1946, as tank barges shall also be considered as existing tank vessels. [Paragraph (j) amended, Sept. 2, 1945, 10 F.R. 11309]

(k) Flame arrester. The term "flame arrester" means any device or assembly of a cellular, tubular, pressure, or other type and of a size approved for preventing the passage of flames into inclosed spaces.

(1) Flame screen. The term "flame screen" means a single screen of corrosion-resistant wire of at least 30 by 30 mesh, or two screens, both of corrosionresistant wire, of at least 20 by 20 mesh, spaced not less than 1/2 inch nor more than 11⁄2 inches apart.

(m) Flash point. The term "flash point" indicates the temperature in degrees Fahrenheit at which a liquid gives off an inflammable vapor when heated in an open-cup tester. For the purpose of the regulations in this subchapter, flash points determined by other testing methods will be equivalent to those determined with an open-cup tester, as follows:

EQUIVALENT FLASH POINTS

(n) Gas free. The term "gas free" means free from dangerous concentrations of inflammable or toxic gases.

(0) General rules and regulations. The term "general rules and regulations" means the general rules and regulations in this chapter (46 CFR Chapter I) prescribed by the Commandant.

(p) Great Lakes. Under this designation shall be included all tank vessels navigating the Great Lakes.

(q) Headquarters. The term "Headquarters" means the Office of the Commandant, U. S. Coast Guard, Washington, D. C.

(r) Inflammable liquid and gas—(1) Inflammable liquid. An "inflammable liquid" is any liquid which gives off inflammable vapors (as determined by flash point from an open-cup tester, as used for test of burning oils) at or below a temperature of 80° F. In the regulations in this subchapter inflammable liquids are referred to by grades, as follows:

Grade A. Any inflammable liquid having a Reid 1 vapor pressure of 14 pounds or more.

1

1 American Society for Testing Materials Standard Method of Test for Vapor Pressure of Petroleum Products (Reid Method)— (D 323), most recent revision.

Grade B. Any inflammable liquid having a Reid vapor pressure under 14 pounds and over 81⁄2 pounds.

Grade C. Any inflammable liquid having a Reid vapor pressure of 81⁄2 pounds or less and a flash point of 80° F. or below.

(2) Liquefied inflammable gas. A "liquefied inflammable gas" is any inflammable gas having a Reid vapor pressure exceeding 40 pounds or a vapor pressure exceeding 25 pounds per square inch gage at 70° F. as determined by N. G. A. A. or other recognized test method which has been compressed and liquefied for purposes of transportation. In the regulations in this subchapter, liquefied inflammable gases are referred to by classes as follows:

Class 1. Any liquefied petroleum gas, including gases or mixtures of gases produced with or derived from petroleum or natural gas, and composed predominantly of hydrocarbons or mixtures of hydrocarbons such as propane, propylene, butane, butylene, or butadiene.

Class 2. Any liquefied inflammable gas other than liquified petroleum gas.

(s) Lakes, bays, and sounds. Under this designation shall be included all tank vessels navigating the waters of any of the lakes, bays, or sounds other than the waters of the Great Lakes.

(t) Marine inspector or inspector. The terms "marine inspector" or "inspector” mean any person from the civilian or military branch of the Coast Guard assigned under the superintendence and direction of an Officer in Charge, Marine Inspection, or any other person as may be designated for the performance of duties with respect to the enforcement and administration of Title 52, R.S., acts amendatory thereof or supplemental thereto, rules and regulations thereunder, and the inspections required thereby.

(u) New tank vessels. The term "new tank vessels" means any tank vessel the construction of which is started on or after November 10, 1936, and shall include any vessel the conversion of which into a tank vessel is started on or after November 10, 1936.

[Preceding paragraph, in small type, superseded by following paragraph during period covered by this Supplement]

2 Natural Gasoline Association of America Tentative Standard Method for Determination of Vapor Pressure of Liquefied Petroleum Gas Products, most recent revision.

(u) New tank vessels. The term "new tank vessels" means any tank vessel the construction of which is started on or after November 10, 1936, and shall include any vessel the conversion of which into a tank vessel is started on or after November 10, 1936, except as provided in paragraph (j) of this section. [Paragraph (u) amended, Sept. 2, 1945, 10 F.R. 11309]

(v) Ocean. Under this designation shall be included all tank vessels normally navigating the waters of any ocean or the Gulf of Mexico more than 20 nautical miles offshore.

(w) Officer in Charge, Marine Inspection. The term "Officer in Charge, Marine Inspection," means any person from the civilian or military branch of the Coast Guard designated as such by the Commandant and who under the superintendence and direction of the District Coast Guard Officer is in charge of an inspection district for the performance of duties with respect to the enforcement and administration of Title 52, R. S., acts amendatory thereof or supplemental thereto, rules and regulations thereunder and the inspections required thereby.

(x) Permit. The term "permit" refers to indorsement on the certificate of inspection, authorizing the presence on board of liquid inflammable or combustible cargoes in bulk, issued by an Officer in Charge, Marine Inspection, for a tank vessel which is found to be in substantial compliance with the regulations in this subchapter.

(y) Pilot rules. The term "pilot rules" means the pilot rules contained in 33 CFR and Supps., Chapter III. These pilot rules are also published by the Coast Guard in three parts: namely, (1) Rules to Prevent Collisions of Vessels and Pilot Rules for Certain Inland Waters of the Atlantic and Pacific Coasts and of the Coast of the Gulf of Mexico; (2) Pilot Rules for the Great Lakes and Other Connecting and Tributary Waters and the St. Marys River; and (3) Pilot Rules for the Rivers Whose Waters Flow Into the Gulf of Mexico and Their Tributaries and the Red River of the North.

(z) Pressure vacuum relief valve. The term "pressure vacuum relief valve" means any device or assembly of a mechanical, liquid, weight, or other type and of a size approved for the automatic regulation of pressure in inclosed spaces.

(aa) Recognized classification society. The term "recognized classification society" means the American Bureau of Shipping or other classification society recognized by the Commandant.

(bb) Reid vapor pressure. The term "Reid vapor pressure" means the vapor pressure of a liquid at a temperature of 100° F. expressed in pounds per square inch, absolute, as determined by the "Reid Method" as described in the latest revision of designation D 323 of the American Society for Testing Materials.

(cc) Rivers. Under this designation shall be included all tank vessels whose navigation is restricted to rivers and/or to canals, exclusively.

(dd) Spark arrester. The term "spark arrester" means any device, assembly, or method of a mechanical, centrifugal, cooling, or other type and of a size suitable for the retention or quenching of sparks in exhaust pipes from internal combustion engines.

(ee) Tank barge. A "tank barge" is any tank vessel not equipped with means of self-propulsion.

(ff) Tank ship. A "tank ship" is any tank vessel propelled by power or sail.

(gg) Tank vessel. A "tank vessel" is any vessel especially constructed or converted to carry liquid bulk cargo in tanks. (R.S. 4405, 4417 (a); 49 Stat. 1889; 46 U.S.C. 375, 391 (a)) [Reg., Mar. 23, 1945, 10 F.R. 3136, 3363, 3562, as amended Sept. 2, 1945, 10 F.R. 11309]

§ 31.1-1 Issuance of certificates of inspection-TB/ALL.

(b) * * The indorsement for the carriage of liquefied inflammable gases is set forth in § 38.11-1 of this subchapter. [Sentence added, Mar. 23, 1945, 10 F.R. 3137, 3363]

CODIFICATION: In § 31.1-1 (a) the words "local inspectors of the bureau" were changed to "Officer in Charge, Marine Inspection", by Regulation, Commandant, Mar. 23, 1945, 10 F.R. 3137.

§ 31.1-2 Authority to regulate vessels carrying hazardous cargo-TB/ALL. Under the authority of R. S. 4405 and 4417a, as amended (46 U.S.C. 375, 391a), and Executive Order No. 9083 (3 CFR Cum. Supp.), the Commandant prescribes the rules and regulations for all vessels having on board any inflammable or com

§ 31.1-3 Penalties for violations— TB/ALL.

CODIFICATION: In § 31.1-3 the word "Bureau" was amended to read "Coast Guard" by Regulation, Commandant, Mar. 23, 1945, 10 F.R. 3137.

§ 31.1-5 Time allowance for changes in existing tank vessels—TB/ALL. [Revoked]

CODIFICATION: § 31.1-5 was revoked by Regulation, Commandant, Mar. 23, 1945, 10 F.R. 3137.

§ 31.1-6 Owner's right of appealTB/ALL. Whenever any person directly interested in or affected by any decision or action of any Officer in Charge, Marine Inspection, shall feel aggrieved by such decision or action, he may appeal therefrom to the District Coast Guard Officer having jurisdiction, and a like appeal shall be allowed from any decision or action of the District Coast Guard Officer to the Commandant, whose decision shall be final: Provided, however, That application for such re-examination of the case by a District Coast Guard Officer or by the Commandant shall be made within 30 days after the decision or action appealed from shall have been rendered or taken. [Reg., Mar. 23, 1945, 10 F.R. 3137]

2. In paragraph (b) the phrase "Bureau or its inspectors" to "Coast Guard".

§ 31.3-3 Inspection of new tank vessels-TB/ALL—(a) Plans. Triplicate copies of contract plans and specifications shall be forwarded to the Officer in Charge, Marine Inspection, in whose district the construction will take place, for submission to Headquarters for approval, but if the tank vessel is to be classed, such plans and specifications shall first be approved by a recognized classification society. If the plans and specifications are found to be in substantial agreement with the regulations in this chapter, they shall be approved, properly stamped and dated and distributed as follows: one set to owner or builder; one set to Officer in Charge, Marine Inspection, of the district in which the vessel is to be built; and one set shall be retained at Headquarters. If such plans and specifications are not approved, Headquarters shall notify the owner or builder promptly wherein they fail to comply with the regulations in this chapter.

CODIFICATION: § 31.3-3 was amended in the following respects, by Regulation, Commandant, Mar. 23, 1945, 10 F.R. 3137:

1. Paragraph (a) was amended as set forth above.

2. In paragraph (b) the phrase local inspectors" was changed to "Officer (s) in Charge, Marine Inspection".

3. In paragraph (c) the phrase "Bureau or its inspectors" was changed to "Coast Guard".

§ 31.3-4 First inspection of existing tank vessels-TB/ALL. [Revoked]

CODIFICATION: § 31.3-4 was revoked by Regulation, Commandant, Mar. 23, 1945, 10 F.R. 3138.

§ 31.3-6 Annual inspection-TB/ALL. CODIFICATION: In § 31.3-6 certain words and phrases were changed as follows by Regulation, Commandant, Mar. 23, 1945, during the period covered by this Supple

ment:

1. In paragraph (a) "local inspectors" to "Officer (s) in Charge, Marine Inspection".

2. In paragraph (c) "board of local inspectors or supervising inspectors" to "inspector"; "local inspectors" to "Officer (s) in Charge, Marine Inspection".

$31.3-7 Drydocking or hauling outTB/ALL.

CODIFICATION: In § 31.3-7 the phrase "local inspectors" was amended to read "Officer (s) in Charge, Marine Inspection", by Regulation, Commandant, Mar. 23, 1945, 10 F.R. 3137.

§ 31.3-8 Special inspections-(a) Repairs and alterations involving safetyTB/ALL. No extensive alterations involving the safety of a tank vessel either in regard to hull or machinery shall be made without the approval of the Commandant. Before such alterations are carried out, copies of plans and specifications in triplicate for the work involved shall be forwarded to the Officer in Charge, Marine Inspection, in whose district the repairs will be made, for submission to Headquarters for approval. If approved, one set of the plans and specifications, properly stamped and dated, shall be returned to the owner or to the repair yard designated by the owner; one set to the Officer in Charge, Marine Inspection, who forwarded the plans and specifications to Headquarters; and one set shall be retained at Headquarters. If such plans and specifications are not approved, Headquarters shall promptly notify the owner or designated shipyard wherein they fail to comply with the regulations in this chapter. No extensive repairs to the hull or machinery which affect the safety of a vessel shall be made without the knowledge of the Officer in Charge, Marine Inspection. [Paragraph (a) amended Mar. 23, 1945, 10 F.R. 3138]

CODIFICATION: § 31.3-8 was amended as follows by Regulation, Commandant, Mar. 23, 1945, 10 F.R. 3137, during the period covered by this Supplement:

1. Paragraph (a) was amended as set forth above.

2. In paragraph (b) the word "have" was changed to "has", "their" to "his", "they" to "he", and the phrase "local inspectors" to "Officer (s) in Charge, Marine Inspection".

3. In paragraph (c) the phrase "supervising inspector(s)" was changed to "District Coast Guard Officer(s)", local inspectors" to "Officer(s) in Charge, Marine Inspection", and the word "their" to "his".

4. In paragraph (e) the phrase "local inspectors" was changed to "Officer (s) in Charge, Marine Inspection".

MANNING OF TANK VESSELS

§ 31.4-1 Licensed officers and crewTB/ALL.

CODIFICATION: In § 31.4-1 (a) and (c) the phrase "local inspectors" was amended to read "Officer (s) in Charge, Marine Inspection", by Regulation, Commandant, Mar. 23, 1945, 10 F.R. 3137.

§ 31.4-2 Tank barges-B/LBR. Tank barges operating on inland waters or on the Great Lakes or rivers need not be manned unless in the judgment of the