What is the ERC (European Research Council)? Find more information here:

-ERC website
-Euresearch: the Swiss guide to European research & innovation

Q: Part of the work of an ERC project will be performed at another institution. Personnel will work under the supervision of the PI at the other institution for the ERC project. Since these tasks are not highly specialized and restricted in extent the persons performing the tasks is not considered as team member. Is it possible to consider as eligible these costs under a third party arrangement or would it be necessary to include the other institution as additional beneficiary?

A: The costs incurred by the third party related to staff put at disposal to the PI and working in the third party's premises could be considered as eligible.