Bond Purchase Agreement (“BPA”)
Contract in which the Issuer and/or borrower agrees to sell bonds to the underwriter.
An agreement, usually between an Issuer (or in the case of a Conduit Financing, a Conduit Issuer and a Conduit Borrower), a Trustee (as tender agent) and a commercial bank, used to guarantee repurchase of Bonds that are subject to short Call Provisions (e.g., daily, weekly or monthly) if such Bonds are tendered for purchase by the bondholders and not simultaneously remarketed to and purchased by new bondholders.
See Also
Contract in which the Issuer and/or borrower agrees to sell bonds to the underwriter.

The period of time (often set forth in the tax certificate), during which a particular category of proceeds may be invested in higher yielding investments without the issue being treated as arbitrage bonds under Section 148 of the Code.