MOODY'S

There are nine basic rating categories for long-term obligations. They range from AAA (highest quality) to C (lowest quality). Moody's applies numerical modifiers 1,2, and 3 in each generic rating classification from AA to CAA. The Modifier 1 indicates that the issue ranks in the higher end of its generic rating category; the modifier 2 indicates a mid-range raking; and the modifier 3 indicates that the issue ranks in the lower end of its generic category. Advance refunded issues that are secured by escorted funds held in cash, held in trust, reinvested in direct non-callable United States government obligations or non-callable obligations unconditionally guaranteed by the U.S. Government are identified with a # (hatchmark) symbol, eg.# AAA.

AAA — Bonds that are rated AAA. are judged to be of the best quality. They carry the smallest degree of investment risk and are generally referred to us "gilt edge". Interest payments are protected by large or by an exceptionally stable margin and principal is secure. While the various protective elements are likely to change, such changes as can be visualized are most unlikely to impair the fundamentally strong position of such issues.

AA — Bonds that are rated AA are judged to be of high quality by all standards. Together with the AAA. group they comprise what are generally known as high-grade bonds. The are rated lower than the best bonds because margins of protection may not be as large as in AAA. securities or fluctuation of protective elements may be of greater amplitude or there may be other elements present that make the long-term risks appear somewhat larger than in AAA. securities.

A — Bonds that are rated A possess many favorable investment attributes and are to be considered as upper medium grade obligations. Factors giving security to principal and interest are considered adequate, but elements may be present that suggest a susceptibility to impairment some time in the future.

BAA — Bonds that are rated BAA are considered as medium grade obligations, i.e., they are neither highly protected nor poorly secured. Interest payments and principal security appear adequate for the present but certain protective elements may be lacking or may be characteristically unreliable over any great length of time. Such bonds lack outstanding investment characteristics and in fact have speculative characteristics as well.

BA — Bonds that are rated BA are judged to have speculative elements; their future cannot be considered as well assured. Often the protection of interest and principal payments may be very moderate, and thereby not well safeguarded during both good and bad times over the future. Uncertainty of position characterizes bonds in this class.

B — Bonds that are rated B generally lack characteristics of the desirable investment. Assurance of interest and principal payments or maintenance of other terms of the contract over any long period of time may be small.

CAA — Bonds that are rated CAA are of poor standing. Such issues may be default or there may be present elements of danger with respect to principal or interest.

Ca — Bonds that are rated Ca represent obligations that are speculative in a high degree. Such issues are often in default or have other marked shortcomings.

C — Bonds that are rated C are the lowest rated class of bonds, and issues so rated can be regarded as having extremely poor prospects of ever attaining any real investment standing.

Con.(? ) — Bonds for which the security depends upon the completion of some act or the fulfillment of some condition are rated conditionally. These are bonds secured by: (a) earnings of projects under construction, (b) earnings of projects unseasoned in operating experience, (c) rentals that begin when facilities are completed, or (d) payments to which some other limiting condition attaches. Parenthetical rating denotes probable credit stature upon completion of construction or elimination of basis of condition.

Source: Moody's 1998

STANDARD & POOR'S RATINGS

Long-term Issue credit ratings

Issue credit ratings are based, in varying degrees, on the following considerations:

Likelihood of payment-capacity and willingness of the obligor to meet its financial commitment on an obligation is accordance with the terms of the obligation;

Nature of and provisions of the obligation;

Protection afforded by, and relative position of, the obligation in the event of bankruptcy, reorganization, or other arrangement under the laws of bankruptcy and other laws affecting creditors' rights.

The issue rating definitions are expressed in terms of default risk. As such they pertain to senior obligations of an entity. Junior obligations are typically rated lower than senior obligations, to reflect the lower priority in bankruptcy, as noted above. (Such differentiation applies when an entity has both senior and subordinated obligations, secured and unsecured obligations, or operating company and holding company obligations.) Accordingly, in the case of junior debt, the rating may not conform exactly with the category definition.

AAA — An obligation rated AAA has the highest rating assigned by Standard & Poor's. The obligor's capacity to meet its financial commitment on the obligation is extremely strong.

AA — An obligation rated AA differs from the highest-rated obligations only in small degree. The obligor's capacity to meet its financial commitment on the obligation is very strong.

A — An obligation rated A is somewhat more susceptible to the adverse effects of changes in circumstances and economic conditions than obligations in higher-rated categories. However, the obligor's capacity to meet its financial commitment on the obligation is still strong.

BBB — An obligation rated BBB exhibits adequate protection parameters. However, adverse economic conditions or changing circumstances are more likely to lead to a weakened capacity of the obligor to meet its financial commitment on the obligation.

Obligations rated BB, B, CCC, CC, and C are regarded as having significant speculative characteristics. BB indicates the least degree of speculation and C the highest. While such obligations will likely have some quality and protective characteristics, these may be outweighed by large uncertainties or major exposures to adverse conditions.

BB — An obligation rated BB is less vulnerable to nonpayment than other speculative issues. However, it faces major ongoing uncertainties or exposure to adverse business, financial, or economic conditions which could lead to the obligors inadequate capacity to meet its financial commitment on the obligation.

B — An obligation rated B is more vulnerable to nonpayment than obligations rated BB, but the obligor currently has the capacity to meet its financial commitment on the obligation. Adverse business, financial, or economic conditions will likely impair the obligor's capacity or willingness to meet its financial commitment on the obligation.

CCC — An obligation rated CCC is currently vulnerable to nonpayment, and is dependent upon favorable business, financial, and economic conditions for the obligor to meet its financial commitment on the obligation. In the event of adverse business, financial, or economic conditions, the obligor is not likely to have the capacity to meet its financial commitment on the obligation.

CC — An obligation rated CC is currently highly vulnerable to nonpayment.

C — The C rating may be used to cover a situation where a bankruptcy petition has been filed or similar action has been taken, but payments on this obligation are being continued.

D — An obligation rated D is in payment default. The D rating category is used when payments on an obligation are not made on the date due even if the applicable grace period has not expired, unless Standard & Poor's believes that such payments will be made during such grace period. The D rating also will be used upon the filing of a bankruptcy petition or the taking of a similar action if payments on an obligation are jeopardized.

Plus (+) The ratings from AA to CCC may be modified by the addition of a
plus or minus sign Minus (-)

or to show relative standing within the major rating categories.

r- This symbol is attached to the ratings of instruments with significant noncredit risks. It highlights risks to principal or volatility of expected returns which are not addressed in the credit rating. Examples include: obligations linked or indexed to equities, currencies, or commodities, obligations exposed to severe prepayment risk-such as interest-only or principal-only mortgage securities; and obligations with unusually risky interest terms, such as inverse floaters.

Source: Standard & Poor’s 1998