Delivery requirements: coupons and coupon checks. This letter is to confirm the substance of conversations you had with the Board’s staff concerning the application of certain provisions of rule G-12, the uniform practice rule, to deliveries of securities bearing past-due coupons. You inquire whether, in the case where a transaction is effected for a settlement date prior to the coupon payment date, a delivery of securities with this past-due coupon attached constitutes "good delivery" for purposes of the rule.

Rule G-12(e)(vii)(C) provides that a seller may, but is not required to, deliver a check in lieu of coupons if delivery is made within thirty calendar days prior to an interest payment date. Thus, in the circumstances you set forth, the seller would have the option to detach the coupons and provide a check, but is under no obligation to do so. A delivery with these coupons still attached would constitute "good delivery," and a rejection of the delivery for this reason would be an improper rejection. MSRB interpretation of March 9, 1978.

Delivery requirements: partials. I am writing to confirm the substance of our telephone conversation concerning the provision of rule G-12(e)(iv) on partial deliveries. In our discussion, you posed a specific example of a single purchase of securities in which half are of one maturity and half of another maturity and inquired whether or not delivery of only one of the maturities would constitute a "partial" under the terms of the rule.

As I stated to you, if the transaction is effected on an "all or none" basis, and your confirmation is marked "all or none" or "AON," this would suffice to indicate that the purchase of both maturities constitutes a single transaction, and that both maturities must be delivered to effect good delivery. MSRB interpretation of February 23, 1978.

Callable securities: "catastrophe" calls. This will acknowledge receipt of your letter dated October 20, 1977 which has been referred to me for reply. In your letter you request an interpretation of the provisions in rules G-12 and G-15 requiring that the dollar price for transactions in callable securities effected on a yield basis be priced to the lower of price to call or price to maturity. (See rules G-12(c)(v)(I) and G-15(a)(viii))[*].

At its meeting held October 25-26, 1977, the Board confirmed that the requirements in rules G-12 and G-15 relating to pricing to call do not include "catastrophe" calls, that is, calls which occur as a result of events specified in the bond indenture which are beyond the control of the issuer. MSRB interpretation of November 7, 1977.

[*] [Currently codified at rule G-15(a)(i)(A)(5)]