Advances by Bangko Sentral
1. Against gold coins or bullion
2. Against securities representing obligations of Bangko Sentral or other domestic institutions of recognized solvency
3. Against credit instruments referred to in subsection (a)
4. Against credit instruments referred to in subsection (b), for periods not exceeding 360 days
5. Against utilized portions of advances in current amount covered by regular overdraft agreements related to operations included under subsections (a) and (b), certified as to amount and liquidity by the institution soliciting the advance
6. Against negotiable treasury bills, certificates of indebtedness, notes and other negotiable obligations of the Government maturing within 3 years from the date of the advance