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1. With respect to to Article 1.01 a) 5, the competent authorities may state in the ship’s certificate that the vessel is a high-speed vessel.
2. With respect to to Article 1.01 a) 10, the competent authorities may use the term “small size craft” as a subcategory of “small craft”.
3. With respect to to Article 1.01 a) 11, the competent authorities may use a different definition of “water bike”.
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4. With respect to Article 4.02, the competent authorities may prescribe that the signal used for "Do not approach", consisting in one short and one long blasts, repeated, as described in chapter III of Annex 6, has a different meaning.
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