English to Russian Law/Patents Law (general)

Друзья, помогите, пожалуйста, с этим большущим предложением. У меня замылился глаз и не могу понять, что - куда и почему. Особенно первые две строчки. Буду очень благодарна! Большущее спасибо!!!

As regards the condition that the conduct of the authorities of the exporting State must have had consequences for the importer in that, despite the exercise of all due care, they could have been avoided only at the cost of excessive sacrifices, it is for the national court to check whether the efforts allegedly made by the trader concerned were genuine, regard being had to the legally binding obligations incumbent on him under Protocol 3.