Sistership Clause : In the event of a collision between two vessels owned by the same Assured, this clause in the hull policy confers on the Assured the same rights as if the two vessels were separately owned and separately insured
Association of Marine Underwriters of San Francisco (AMUSF), Glossary of Marine Insurance and Shipping Terms, http://www.amusf.com/Definitions_A.htm, CA, USA 2011. (Mrtm Insur and Shipping - Amer) {575}