larval and adult stages within the perimeter of the airport, and within a protective area extending for a distance of four hundred meters around that perimeter.

[21 FR. 9870, Dec. 12, 1956, as amended at 22 F.R. 6464, Aug. 13, 1957]

§ 71.606 Perimeter: Airports only.

As used in this subpart, the perimeter of an airport means a line enclosing the airport buildings and any land or water used or intended to be used for the parking of aircraft.

§ 71.607 Withdrawal of designation.

The designation of an airport as a sanitary airport may be withdrawn by the Surgeon General after reasonable notice to the airport whenever he finds that the airport fails to comply with any applicable sanitary requirement prescribed in this subpart or fails to meet the conditions prescribed in §§ 71.602 and 71.603. § 71.608 Cholera and plague: Persons unloading vessels or aircraft.

(a) Cholera. Persons who unload a cholera infected vessel or aircraft, and in the judgment of the medical officer in charge have been exposed to risk of infection, shall be placed under surveillance for a period not to exceed five days from the time they cease unloading.

(b) Plague. Persons who unload a vessel or aircraft may be disinsected and placed under surveillance or in isolation for a period not to exceed six days from the time they cease unloading, if the vessel or aircraft is infected or during the voyage has been infected with human or rodent plague, or if inspection of the vessel or aircraft has revealed rodent mortality of undetermined cause, and in the judgment of the medical officer in charge such persons have been exposed to risk of infection.

found that the volume of business clearing through the port does not justify maintenance of inspection equipment and personnel, if proper facilities are not provided and maintained by the airport, if the rules and regulations of the Federal Government are not complied with, or if it be found that some other location would be more advantageous.

(d) International airports shall be municipal airports, unless particular conditions which prevail warrant a departure from this requirement.

(e) Each international airport shall provide without cost to the Government suitable office and other space for the exclusive use of Federal officials connected with the port. A suitable surfaced loading area shall be provided by each airport at a convenient location with respect to such office space. Such loading area shall be reserved for the use of aircraft entering or clearing through the airport.

(f) International airports shall be open to all aircraft for entry and clearance purposes and no charge shall be made for the use of said airports for such purposes. However, in any case where an international airport authorizes any such aircraft to use such airport for the taking on or discharging of passengers or cargo, or as a base for other commercial operations or for private operations, this paragraph shall not be interpreted to mean that charges may not be made for such commercial or private use of such airport.

(g) All aircraft entering or clearing through an international airport shall receive the required servicing by airport personnel promptly and in the order of arrival or preparation for departure without discrimination. The charges made for such servicing shall in no case exceed the schedule of charges prevailing at the airport in question. A copy of said schedule of charges shall be posted in a conspicuous place at the office space provided for the use of Federal officials connected with the port.

(h) International airports shall adopt and enforce observance of such requirements for the operation of airports, including airport rules, as may be prescribed or recommended by the Federal Aviation Agency.

(i) Requirements in addition to all the foregoing may be imposed at a particular airport as the needs of the district or area to be served by the airport may demand.

(a) The smallest area within a territory, which may be a port or an airport, having a defined boundary and possessing a health organization which is able to apply the appropriate sanitary measures permitted or prescribed by these Regulations; the situation of such an area within a larger area which also possesses such a health organization shall not preclude the smaller area from being a local area for the purposes of these Regulations; or (b) an airport in connexion with which a direct transit area has been established;

• • CHAPTER II-SANITARY MEASURES ON DEPARTURE Article 30

1. The health authority for a port or an airport or for the local area in which a frontier post is situated may, when it considers it necessary, medically examine any person before his departure on an international voyage. The time and place of this examination shall be arranged to take into account the customs examination and other formalities, so as to facilitate his departure and to avoid delay.

2. The health authority referred to in paragraph 1 of this Article shall take all practicable measures

(a) To prevent the departure of any infected person or suspect;

(b) To prevent the introduction on board a ship, an aircraft, a train, or a road vehicle of possible agents of infection or vectors of a quarantinable disease.

3. Notwithstanding the provisions of subparagraph (a) of paragraph 2 of this Article, a person on an international voyage who on arrival is placed under surveillance may be allowed to continue his voyage. If he is doing so by air, the health authority for the airport shall record the fact on the General Declaration.

1. A certificate of vaccination issued in accordance with the Convention of 21 June 1926, as amended by the Convention of 15 December 1944, or in accordance with the Convention of 12 April 1933, as amended by the Convention of 15 December 1944, before the entry-into-force of these Regulations shall continue to be valid for the period for which it was previously valid. Moreover, the validity of a certificate of vaccination against yellow fever so issued shall be extended for two years after the date on which it would otherwise have ceased to be valid.

72.111 Applicability.

72.112 Inspection.

72.174 Health of persons handling food. Subpart 1-Certification Following Inspections 72.181 Issuance and posting of certificates.

Subpart J-Drinking Water Standards 72.201 Definition of terms. 72.202 Source and protection. 72.203 Bacteriological quality. 72.204 Physical characteristics. 72.205 Chemical characteristics. 72.206 Radioactivity.

72.207 Recommended analytical methods.

AUTHORITY: The provisions of this Part 72 issued under sec. 215, 58 Stat. 690, as amended; 42 U.S.C. 216. Sec. 361, 58 Stat. 703; 42 U.S.C. 264.

SOURCE: The provisions of this Part 72 appear at 21 F.R. 9881, Dec. 12, 1956, unless otherwise noted.

Subpart A-Definitions and General Provisions

As used in this part, terms shall have the following meaning:

(a) Bactericidal treatment. The application of a method or substance for the destruction of pathogens and other organisms. (See § 72.4).

(b) Communicable diseases. Any of the diseases enumerated in § 72.2 unless otherwise specified.

(c) Communicable period. The period or periods during which the etiologic agent may be transferred directly or indirectly from the body of the infected person or animal to the body of another.

(d) Contamination. The presence of a certain amount of undesirable substance or material, which may contain pathogenic micro-organisms.

(e) Conveyance. Conveyance means any land or air carrier, or any vessel as

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defined in paragraph (o) of this section. (f) Existing vessel. Any vessel the construction of which was started prior to the effective date of the regulations in this part.

(g) Garbage. (1) The solid animal and vegetable waste, together with the natural moisture content, resulting from the handling, preparation, or consumption of foods in houses, restaurants, hotels, kitchens, and similar establishments, or (2) any other food waste containing pork.

(h) Incubation period. The period between the implanting of disease organisms in a susceptible person and the appearance of clinical manifestation of the disease.

(i) Interstate traffic. (1) The movement of any conveyance or the transportation of persons or property, including any portion of such movement or transportation which is entirely within a State or possession, (i) from a point of origin in any State or possession to a point of destination in any other State or possession, or (ii) between a point of origin and a point of destination in the same State or possession but through any other State, possession, or contiguous foreign country.

(2) Interstate traffic does not include the following:

(i) The movement of any conveyance which is solely for the purpose of unloading persons or property transported from a foreign country, or loading persons or property for transportation to a foreign country.

(ii) The movement of any conveyance which is solely for the purpose of effecting its repair, reconstruction, rehabilitation, or storage.

(j) Minimum heat treatment. The causing of all particles in garbage to be heated to a boiling temperature and held at that temperature for a period of not less than 30 minutes.

(k) Possession. Any of the possessions of the United States, including Puerto Rico and the Virgin Islands.

(1) Potable water. Water which meets the standards prescribed in the Public Health Service Drinking Water Standards (see Subpart J of this part).

(m) State. Any State, the District of Columbia, Puerto Rico and the Virgin Islands.

(n) Utensil. Includes any kitchenware, tableware, glassware, cutlery, containers, or equipment with which food or

drink comes in contact during storage, preparation, or serving.

(0) Vessel. Any passenger-carrying, cargo, or towing vessel exclusive of:

(1) Fishing boats including those used for shell-fishing;

(2) Tugs which operate only locally in specific harbors and adjacent waters; (3) Barges without means of selfpropulsion;

(4) Construction-equipment boats and dredges; and

(5) Sand and gravel dredging and handling boats.

(p) Wash water. (See § 72.118 (a).)

(q) Watering point. The specific place or water boat from which potable water is loaded on a conveyance.

(r) Shellfish. Any fresh, frozen, or incompletely cooked oysters, clams, or mussels, either shucked or in the shell, and any fresh, frozen, or incompletely cooked edible products thereof.

[21 F.R. 9881, Dec. 12, 1956, as amended at 25 F.R. 43, Jan. 5, 1960; 27 F.R. 2152, Mar. 6, 1962]

§ 72.2 List of communicable diseases.

For the purposes of this part, the following shall be considered as communicable diseases: Anthrax, chancroid, cholera, dengue, diphtheria, granuloma inguinale, infectious encephalitis, favus, gonorrhea, lymphogranuloma venereum, meningococcus meningitis, plague, poliomyelitis, psittacocis, ringworm of the scalp, scarlet fever, streptococcic sore throat, smallpox, syphilis, trachoma, tuberculosis, typhoid fever, typhus, and yellow fever. (See Executive Order No. 9708, March 26, 1946, 3 CFR, 1946 Supp., as amended by Executive Order 10532, May 28, 1954, 3 CFR, 1954 Supp.) § 72.3

Measures in the event of inadequate local control.

Whenever the Surgeon General determines that the measures taken by health authorities of any State or possession (including political subdivisions thereof) are insufficient to prevent the spread of any of the communicable diseases from such State or possession to any other State or possession, he may take such measures to prevent such spread of the diseases as he deems reasonably necessary, including inspection, fumigation, disinfection, sanitation, pest extermination, and destruction of animals or articles believed to be sources of infection.

72.4 Effective bactericidal treatment.

Whenever, under the provisions of this part, bactericidal treatment is required, it shall be accomplished by one or more of the following methods:

(a) By immersion of the utensil or equipment for at least 2 minutes in clean hot water at a temperature of at least 170° F. or for one-half minute in boiling water;

(b) By immersion of the utensil or equipment for at least 2 minutes in a lukewarm chlorine bath containing at least 50 ppm of available chlorine if hypochlorites are used or a concentration of equal bactericidal strength if chloramines are used;

(c) By exposure of the utensil or equipment in a steam cabinet at a temperature of at least 170° F. for at least 15 minutes or at a temperature of 200° F. for at least 5 minutes;

(d) By exposure of the utensil or equipment in an oven or hot air cabinet at a temperature of at least 180° F. for at least 20 minutes;

(e) In the case of utensils or equipment so designed or installed as to make immersion or exposure impractical, the equipment may be treated for the prescribed periods of time either at the temperatures or with chlorine solutions as specified above, (1) with live steam from a hose if the steam can be confined, (2) with boiling rinse water, or (3) by spraying or swabbing with chlorine solution;

(f) Any other method determined by the Surgeon General, upon application of an owner or operator of a conveyance, to be effective to prevent the spread of communicable disease.

Subpart B-Restrictions on Travel of Persons

§ 72.12 Certain communicable diseases; special requirements.

The following provisions are applicable with respect to any person who is in the communicable period of cholera, plague, smallpox, typhus or yellow fever, or who, having been exposed to any such disease, is in the incubation period thereof:

(a) Requirements relating to travelers. (1) No such person shall travel from one State or possession to another, or on a conveyance engaged in interstate traffic, without a written permit of the Surgeon General or his authorized representative.

(2) Application for a permit may be made directly to the Surgeon General or to his representative authorized to issue permits.

(3) Upon receipt of an application, the Surgeon General or his authorized representative shall, taking into consideration the risk of introduction, transmission, or spread of the disease from one State or possession to another, reject it, or issue a permit which may be conditioned upon compliance with such precautionary measures as he shall prescribe.

(4) A person to whom a permit has been issued shall retain it in his possession throughout the course of his authorized travel and comply with all conditions prescribed therein, including presentation of the permit to the operators of conveyances as required by its terms.

(b) Requirements relating to operation of conveyances. (1) The operator of any conveyance engaged in interstate traffic shall not knowingly (i) accept for transportation any person who fails to present a permit as required by paragraph (a) of this section, or (ii) transport any person in violation of conditions prescribed in his permit.

(2) Whenever a person subject to the provisions of this section is transported on a conveyance engaged in interstate traffic, the operator thereof shall take such measures to prevent the spread of the disease, including submission of the conveyance to inspection, disinfection and the like, as an officer of the Public Health Service designated by the Surgeon General for such purposes deems reasonably necessary and directs. § 72.13 Responsibility with respect to minors, wards, and patients.

A parent, guardian, physician, nurse, or other such person shall not transport, or procure or furnish transportation for