A rate that is different from the manual rate.
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A rate that varies from the manual rate. Deviation : Section 48 of the marine Insurance Act: (01) Where a ship without lawful excuse, deviates from the voyage contemplated by the Policy, the Insurer is discharged from liability as from the time of deviation, and it is immaterial that the ship may have regained her route before any loss occurs. (02) There is a deviation from the voyage contemplated by the Policy: (a) where the course of the voyage is specifically designated by the Policy, and that course is departed from, or (b) where the course of the voyage is not specifically designated by the Policy, but the usual and customary course is departed from. (03) The intention to deviate is immaterial, there must be a deviation in fact to discharge from his liability under the contract.
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UK: Departure of a vessel from the customary or agreed route with the intention of returning to that route to complete the voyage. Under the Marine Insurance act 1906, s.46, the insurer is discharged from liability if the deviation is made without lawful excuse. The Institute Cargo Clauses deviation clause protects cargo owners by ‘holding covered’ during deviations beyond the insured’s control. A similar but more strongly worded deviation clause appears in hull voyage policies. Deviation does not apply to time policies as cover is not based on voyages.