MULTILATERAL-NAVAL ARMAMENT-MARCH 25, 1936 Article 15 At the time of communicating the Annual Programme prescribed by Article 12 (a), each High Contracting Party shall inform all the other High Contracting Parties of all vessels included in His previous Annual Programmes and declarations that have not yet been laid down or acquired, but which it is the intention to lay down or acquire during the period covered by the first mentioned Annual Programme. Article 16 If, before the keel of any vessel coming within the categories or sub-categories mentioned in Article 12 (a) is laid, any important modification is made in the particulars regarding her which have been communicated under Article 12 (b), information concerning this modification shall be given, and the laying of the keel shall be deferred until at least four months after this information has reached all the other High Contracting Parties. Annual program to include previous dec- laration. Ante, p. 1377. Modifications; no- tice to be given before keel laid. Article 17 No High Contracting Party shall lay down or acquire any vessel of the categories or sub-categories mentioned in Article 12 (a), which has not previously been included in His Annual Programme of con- struction or declaration of acquisition for the current year or in any earlier Annual Programme or declaration. Article 18 If the construction, modernisation or reconstruction of any vessel coming within the categories or sub-categories mentioned in Article 12 (a), which is for the order of a Power not a party to the present Treaty, is undertaken within the jurisdiction of any High Contracting Party, He shall promptly inform all the other High Contracting Parties of the date of the signing of the contract and shall also give as soon as possible in respect of the vessel all the information men- tioned in Article 12 (b), (c) and (d). Construction or ac- quisition forbidden if not included in annual program. Construction, etc. , of vessel for nonsigna- tory Power. Ante, p. 1377. Article 19 Each High Contracting Party shall give lists of all His minor war liststino'beursthed; vessels and auxiliary vessels with their characteristics, as enumerated in Article 12 (b), and information as to the particular service for which they are intended, so as to reach all the other High Contracting Parties within one month after the date of the coming into force of
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