English to Russian Law/Patents Human Resources

...each employee (a) shall be given credit for Prior Service for purposes of eligibility to participate, satisfaction of any waiting periods, evidence of insurability requirements, or the application of any pre-existing condition limitations and (b) shall be given credit for amounts paid under a corresponding Company Plan during the same period for purposes of applying deductibles, co-payments and out-of-pocket maximums as though such amounts had been paid in accordance with the terms and conditions of the Buyer’s Plans.

для определения его права на участие [в чем?] Поскольку заголовок раздела - Benefit Plans, в льготных (поощрительных и пр.) программах (планах)?