(j) Interest Rate Swap. "Interest Rate Swap" means a transaction pursuant to which one party is required to make periodic payments of a fixed amount (or an amount calculated by applying a fixed rate to a non-amortizing notional amount) and the other party is required to make periodic payments of amounts in the same currency calculated by applying a floating rate to a non-amortizing notional amount. Section 13.2. Procedure for Exercise. Except when rights granted pursuant to an Option Transaction are deemed to be exercised pursuant to the provisions of Section 13.7 (Automatic Exercise) or Section 13.8 (Fallback Exercise), Buyer must give notice (which may be given orally, including by telephone, unless the parties specify otherwise in the related Confirmation) during the Exercise Period to Seller or, if designated in the relevant Confirmation. Seller's Agent, of its exercise of such rights in accordance with the contact details, if any, specified in the related Confirmation, and that notice will be deemed to be irrevocable. If notice of exercise in respect of an American style Option Transaction is given after the Latest Exercise Time on any day in an Exercise Period, then that notice will be deemed given on the next following day, if any, in that Exercise Period. If notice of exercise in respect of a European style Option Transaction or Bermuda style Option Transaction is given after the Latest Exercise Time on any day in an Exercise Period (or, in respect of any Option Transaction, after the Expiration Time), then that notice of exercise will be deemed to be ineffective. If, in respect of any Option Transaction, notice of exercise is given before the Earliest Exercise Time on any day in the Exercise Period, then that notice will be deemed given at the Earliest Exercise Time on that day. In the case of an Option Transaction to which Partial Exercise or Multiple Exercise is applicable, Buyer must specify in the notice the Notional Amount of the U