Code III.-Form of Cloud: Low Cloud.-A. Medium or High Cloud.-B.

Code IV (a), (b), (c).—Heights and Pressures of Upper Air Reports.

Code IV (c).-Height or pressure to which Temperature and Humidity Values

Code IX.-Characteristic of Barometric Tendency.—B.

E. g., 17° equals 03; 53° equals 11; 257° equals 51; 313° equals 63.

ANNEX (H).

CUSTOMS.

GENERAL PROVISIONS.

1.

Any aircraft going abroad shall depart only from aerodromes specially designated by the Customs Administration of each contracting State, and named "customs aerodromes."

Aircraft coming from abroad shall land only in such aerodromes.

2.

Every aircraft which passes from one State into another is obliged to cross the frontier between certain points fixed by the contracting States. nese points are shown on the aeronautical maps.

3.

All necessary information concerning customs aerodromes within a State, including any alterations made to the list and any corresponding alterations necessary on the aeronautical maps and the dates when such alterations become valid, and all other information concerning any international aerodromes which may be established, shall be communicated by the State concerned to the International Commission for Air Navigation, which shall notify such information to all of the contracting States. The contracting States may agree to establish international aerodromes at which there may be joint customs services for two or more States.

4.

When, by reason of a case of force majeure, which must be duly justified, an aircraft crosses the frontier at any other point than those designated, it shall land at the nearest customs aerodrome on its route. If it is forced to land before reaching this aerodrome it shall inform the nearest police or customs authorities.

It will only be permitted to leave again with the authorisation of these authorities, who shall, after verification, stamp the log book and the manifest provided for in paragraph 5: they shall inform the pilot of the customs aerodrome where he must necessarily carry out. the formalities of customs clearance.

5.

Before departure, or immediately after arrival, according to whether they are going to or coming back from a foreign country, pilots shall show their log books to the authorities of the aerodrome

29479 S. Doc. 348, 67-4- -84

and, if necessary, the manifest of the goods and supplies for the journey which they carry.

6.

The manifest is to be kept in conformity with the attached form No. 1.

The goods must be the subject of detailed declarations in conformity with the attached form No. 2, made out by the senders.

Every contracting State has the right to prescribe for the insertion either on the manifest or on the customs declaration of such supplementary entries as it may deem necessary.

7.

In the case of an aircraft transporting goods the customs officer, before departure, shall examine the manifest and declarations, make the prescribed verifications and sign the log book as well as the manifest. He shall verify his signature with a stamp. He shall seal the goods or sets of goods, for which such a formality is required.

On arrival the customs officer shall ensure that the seal is unbroken, shall pass the goods, shall sign the log book and keep the manifest. In the case of an aircraft with no goods on board, the log book only shall be signed by the police and customs officials.

The fuel on board shall not be liable to customs duties provided the quantity thereof does not exceed that needed for the journey as defined in the log book.

8.

As an exception to the general regulations, certain classes of aircraft, particularly postal aircraft, aircraft belonging to aerial transport companies regularly constituted and authorised and those belonging to members of recognised touring societies not engaged in the public conveyance of persons or goods, may be freed from the obligation of landing at a customs aerodrome and authorised to begin or end their journey at certain inland aerodromes appointed by the Customs and Police Administration of each State at which customs formalities shall be complied with.

However, such aircraft shall follow the normal air-route, and make their identity known by signals agreed upon as they fly across the frontier.

REGULATIONS APPLICABLE TO AIRCRAFT AND GOODS.

9.

Aircraft landing in foreign countries are in principle liable to customs duties if such exist.

If they are to be re-exported, they shall have the benefit of the regulations as to permit by bond or deposit of the taxes.