(a) Deposit or account insurance provided by the Federal Deposit Insurance Corporation, the Federal Savings and Loan Insurance Corporation, and the National Credit Union Share Insurance Fund, is hereby recognized. Deposits or accounts which are insured by a State or agency thereof, or by a corporation chartered by a State for the sole purpose of insuring deposits or accounts of financial institutions eligible to be Treasury tax and loan depositaries (hereinafter referred to as Insurance Arrangement), shall be approved as provided herein. Such approval constitutes recognition for the purpose of reducing the amount of collateral required of a tax and loan depositary by the amount of recognized insurance coverage pursuant to 31 CFR 203.15 .(b) Generally, these regulations and their associated guidelines require that an organization providing insurance maintain a corpus of sufficient value and liquidity, and/or that it have sufficient State borrowing authority, in relation to its liabilities and total insured savings (or deposits) to provide adequate security to the Government's deposits and that adequate monitoring of the financial condition of the insured institutions is conducted.