Transactions in Municipal Collateralized Mortgage Obligations: Rule G-15
The Board has become aware that some municipal issuers recently have issued securities that are structured as collateralized mortgage obligations (CMOs). Like the CMOs issued by non-municipal issuers, these securities represent interest in pools of mortgages and are partitioned into several classes (or tranches), which are serialized as to priority for redemption and payment of principal.
Since these "municipal CMOs" are being issued directly by political subdivisions, agencies or instrumentalities of state or local governments, it appears that they may be "municipal securities," as that term is defined under section 3(a)(29) of the Securities Exchange Act of 1934. Although the interest paid on these instruments may be subject to federal taxation, the Board reminds dealers that transactions in municipal securities are subject to Board rules whether those securities are taxable or tax-exempt. Accordingly, dealers executing transactions in municipal CMOs should ensure that they are in compliance with all applicable Board rules. For example, dealers should ensure that all Board requirements regarding professional qualifications and recordkeeping are observed.
Because the interest and principal payment features of municipal CMOs are very different from those of traditional municipal bonds, dealers should take care to ensure that all Board rules designed for the protection of customers are observed. This includes ensuring that: (i) all material facts about each transaction are disclosed to the customer, in compliance with rule G-17; (ii) each transaction recommended to a customer is suitable for the customer, in compliance with rule G-19; and (iii) the price of each customer transaction is fair and reasonable, in compliance with rule G-30. With respect to the material facts that should be disclosed to customers, dealers should ensure that customers are adequately informed of the likelihood of "prepayment" of principal on the securities and the likelihood of the securities being redeemed substantially prior to the stated maturity date. If the amount of principal that will be delivered to the customer differs from the "face" amount to be delivered, the customer also should be informed of this fact, along with the amount of the principal that will be delivered.
The Board also has reviewed the requirements of rule G-15(a)(i)(l)[*] with respect to confirmation disclosure of "yield to maturity" or "yield to call" on customer confirmations in these securities. Because CMOs typically pay principal to holders prior to maturity and because the actual duration of the securities often varies significantly from the stated maturity, the Board has interpreted rule G-15(a) not to require a statement of yield for transactions in municipal CMOs. A dealer that decides to voluntarily include a statement of "yield" on a confirmation for these securities must also disclose on the confirmation the method by which yield was computed. This will help to avoid the possibility of the customer misunderstanding the yield figure if he should use it to compare the merits of alternative investments.
The Board will be monitoring municipal CMOs and will adopt specific rules for the instruments in the future if this appears to be necessary.
 Of course, whether any instrument is a municipal security is a matter to be determined by the Securities and Exchange Commission.
 In addition, as noted above, the interest paid on these instruments may be subject to federal taxation. If the securities are identified by the issuer or sold by the underwriter as subject to federal taxation, rules G-12(c) and G-15(a) require confirmations to contain a designation to that effect.
[*] [Currently codified at rule G-15(a)(i)(A)(5)]