Претензии должны быть подтверждены

Претензии должны быть подтверждены свидетельством независимой компетентной экспертной организацией, если Стороны не оговорили иное в Спецификации.

Results (English) 1:

Claims must be supported by evidence of an independent expert organization competent, unless the parties have agreed otherwise in the Specification.

Results (English) 2:

Claims must be corroborated by the testimony of an independent competent expert organization, unless the Parties have stipulated otherwise in the Specification.

Results (English) 3:

Unless otherwise specified in the specifications by the parties, claims must be supported by evidence organized by independent competent experts.