**Document Title: Additional Insured Endorsement**

**Policy Number:** 89-06-923

**Effective Date of Policy (Eff. Date of Pol):** 5-21-79

**Effective Date of End (Eff. Date of End):** 5-21-79

**Agency Number (Agency No.):** 50-515-810

**Additional Premium (Add'l Premium):** $ [Blank]

**Return Premium:** $ [Blank]

**Named Insured:** INTERNATIONAL BUSINESS MACHINES CORP.

**Endorsement Details:**

This endorsement is issued by the company named below, which is the insurer under the policy designated above, and it forms a part of said policy as of the effective date hereof, at the hour stated in the policy Declarations.

**Additional Insured:**

- **Arizona Public Service Company**
  - C/O BECHTEL POWER CORPORATION
  - P.O. BOX 49
  - PALO VERDE, ARIZONA 85343

**Agreement:**

It is agreed that the following is added as an additional insured:

- Arizona Public Service Company, Palo Verde Nuclear Generating Station, Units 1, 2, and 3.

**Insurance Application:**

The insurance afforded by the policy applies as respects the additional interests of the participants in the Arizona Nuclear Power Project as defined in the General Terms and Conditions (Maintenance Agreement) for the Arizona Public Service Co., Palo Verde Nuclear Generating Station, Units 1, 2, and 3.

**Casualty Department:**

JOHNSON & HIGGINS
DRM/TMP/8-21-81

**Insurers:**

- ZURICH INSURANCE COMPANY
- AMERICAN GUARANTEE AND LIABILITY INSURANCE COMPANY

**Counter-signed:**

Authorized Agent

**U.G.U.116-G REV. 11-76**

**MM 009620**