Article 36 is mentioned in the second paragraph...This is what it states

Article 36 Redemption of currency

1. The CBI may decide to redeem banknotes or coins by issuing, free of charge, other banknotes or coins in equivalent amounts. A decision to redeem banknotes or coins shall be issued in the form of a regulation of the CBI specifying the period during which the exchange shall take place and the locations and times at which withdrawn banknotes or coins shall be presented for redemption.

2. At the end of the exchange period, or at any other time specified by the CBI, redeemed banknotes and coins shall be demonetized and cease to be legal tender.

3. The CBI shall notify the public, by publication in the Official Publication, of the banknotes and coins that are legal tender.


http://www.iraqcoalition.org/regulations/20040306_CPAORD_56_Central_Bank_Law_with_Annex.pdf