Joint support from the ERDF, the ESF+, the Cohesion Fund and the JTF

1.   The ERDF, the ESF+, the Cohesion Fund and the JTF may jointly provide support for programmes under the Investment for jobs and growth goal.
2.   The ERDF and the ESF+ may finance, in a complementary manner and subject to a limit of 15 % of support from those Funds for each priority of a programme, all or part of an operation for which the costs are eligible for support from the other Fund on the basis of eligibility rules applied to that Fund, provided that such costs are necessary for the implementation. That option shall not apply to any resources of the ERDF and the ESF+ that are transferred to the JTF in accordance with Article 27.