Article 4
Underlying exposures to transactions which themselves have underlying assets
1. When assessing the underlying exposures of a transaction (transaction A) which itself has an underlying exposure to another transaction (transaction B) for the purpose of Articles 5 and 6, an institution shall treat the exposure to transaction B as replaced with the exposures underlying transaction B.
2. Paragraph 1 shall apply as long as the underlying exposures are exposures to transactions with underlying assets.