The recent MSRB rule change is going to - DTCC

Zero coupon bonds and OID bonds are callable at an accreted value. Required but Conditional on Callable = YES First Par Call Date The first date on which bonds may be called at Par for redemption. Required but Conditional on Callable = YES First Par call price The price of the bonds on the first Par part call. Particularly relevant for CAV Bonds. ................
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