<table>
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<tbody>
<tr class="odd">
<td></td>
<td colspan="41">OMB Approval No. 2700-0042</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="22">amendment of solicitation/</td>
<td colspan="13">1. CONTRACT ID CODE</td>
<td colspan="6">PAGE OF PAGES</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="22">modification of contract</td>
<td colspan="13"></td>
<td colspan="2">1</td>
<td colspan="4">7</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="12">2. AMENDMENT/MODIFICATION NO.</td>
<td colspan="8">3. EFFECTIVE DATE</td>
<td colspan="11">4. REQUISITION/PURCHASE REQ. NO.</td>
<td colspan="10">5. PROJECT NO. <em>(If applicable)</em></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="12">2</td>
<td colspan="8">June 17, 2002</td>
<td colspan="11">02070901 Complete</td>
<td colspan="10"></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="9">6. ISSUED BY</td>
<td colspan="3">CODE</td>
<td colspan="8"></td>
<td colspan="12">7. ADMINISTERED BY <em>(If other than Item 6)</em></td>
<td colspan="3">CODE</td>
<td colspan="6"></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="20"><p>NASA JSC White Sands Test Facility</p>
<p>Attn: RE/Janet K. Reese</p>
<p>P. O. Box 20</p>
<p>Las Cruces, NM 88004-0020</p></td>
<td colspan="21"></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="41">8. NAME AND ADDRESS OF CONTRACTOR <em>(No., street,
county, State, and ZIP Code)</em></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="41"></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="6">CODE</td>
<td colspan="14"></td>
<td colspan="8">FACILITY CODE</td>
<td colspan="13"></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="4">(x)</td>
<td colspan="16">9A. AMENDMENT OF SOLICITATION NO.</td>
<td colspan="21">9B. DATED <em>(SEE ITEM 11)</em></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="4">X</td>
<td colspan="16">RFQ9-WSRE-W01-2-27Q</td>
<td colspan="21">4/16/02</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="4"></td>
<td colspan="16">10A. MODIFICATION OF CONTRACT/ORDER NO.</td>
<td colspan="21">10B. DATED <em>(SEE ITEM 13)</em></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="4"></td>
<td colspan="16"></td>
<td colspan="21"></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="41">11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF
SOLICITATIONS</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="41"></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td colspan="2"></td>
<td>X</td>
<td colspan="25">The above numbered solicitation is amended as set forth
in Item 14. The hour and date specified for receipt of Offers</td>
<td colspan="3"></td>
<td colspan="5">is extended,</td>
<td>X</td>
<td colspan="7">is not extended.</td>
</tr>
<tr class="even">
<td></td>
<td colspan="41">Offers must acknowledge receipt of this amendment prior
to the hour and date specified in the solicitation or as amended, by one
of the following methods:</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="13"></td>
<td colspan="4"></td>
<td colspan="22"></td>
<td colspan="4"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="13">(a) By completing Items 8 and 15, and returning</td>
<td colspan="2">1</td>
<td colspan="23">copies of the amendment; (b) By acknowledging receipt
of this amendment on each copy of the offor</td>
<td colspan="5"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="41">submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE
OF YOUR ACKNOWLEDGEMENT TO</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="41">BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF
OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION
OF</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="41">YOUR OFFER. If by virtue of this amendment you desire
to change an offer already submitted, such change may be made by
telegram or letter, provided each telegram</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="41">or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date
specified.</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="41">12. ACCOUNTING AND APPROPRIATION DATA <em>(If
required)</em></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="41">P99-23-AY-DO-SA-RA-2590-RC11</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="41">13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF
CONTRACTS/ORDERS,<br />
IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.(x)</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="5">(x)</td>
<td colspan="36">A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify
authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="5"></td>
<td colspan="12">CONTRACT ORDER NO. IN ITEM 10A.</td>
<td colspan="24"></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="5"></td>
<td colspan="36">B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO
REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying
office,</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="5"></td>
<td colspan="36">appropriation date, etc.) SET FORTH IN ITEM 14,
PURSUANT TO THE AUTHORITY OF FAR 43.103(b).</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="5"></td>
<td colspan="36">C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT
TO AUTHORITY OF:</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="5"></td>
<td colspan="36"></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="5"></td>
<td colspan="36">d. OTHER <em>(Specify type of modification and
authority)</em></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="5"></td>
<td colspan="36"></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="8"></td>
<td colspan="3"></td>
<td colspan="2"></td>
<td colspan="4"></td>
<td colspan="9"></td>
<td colspan="3"></td>
<td colspan="12"></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="7"><strong>E. IMPORTANT:</strong> Contractor</td>
<td colspan="3"></td>
<td colspan="3">is not,</td>
<td colspan="3"></td>
<td colspan="7">is required to sign this document and return</td>
<td colspan="2"></td>
<td colspan="15">copies to the issuing office.</td>
<td colspan="3"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="41"></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="41">14. description of amendment/modification
<em>(Organized by UCF section headings, including solicitation/contract
subject matter where feasible.)</em></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="41"><p>The purpose of this amendment is to incorporate the
questions and answers (Attachment 1), and two additional drawings
(Attachment 2) into the Request for Quote RFQ9-WSRE-W01-2-27Q.</p>
<p>The response date remains the same: July 9, 2002, 4:30 p.m.
MDT.</p></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="41">Except as provided herein, all terms and conditions of
the document referenced in Item 9A or 10A, as heretofore changed,
remains unchanged and in full force and effect.</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="20">15A. NAME AND TITLE OF SIGNER <em>(Type or
print)</em></td>
<td colspan="21">16A. NAME AND TITLE OF CONTRACTING OFFICER <em>(Type or
print)</em></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="20"></td>
<td colspan="21">Michael B. Lalla</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="18">15B. CONTRACTOR/OFFEROR</td>
<td colspan="2">15C. DATE SIGNED</td>
<td colspan="14">16B. UNITED STATES OF AMERICA</td>
<td colspan="7">16C. DATE SIGNED</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="3"></td>
<td colspan="11"></td>
<td colspan="4"></td>
<td colspan="2"></td>
<td>BY</td>
<td colspan="12">Original signed by Michael B. Lalla</td>
<td></td>
<td colspan="8">6/17/02</td>
<td></td>
</tr>
<tr class="even">
<td></td>
<td colspan="18"><em>(Signature of person authorized to sign)</em></td>
<td colspan="2"></td>
<td colspan="14"><em>(Signature of Contracting Officer)</em></td>
<td colspan="7"></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="19">NSN 7540-01-152-8070<br />
PREVIOUS EDITION UNUSABLE</td>
<td colspan="5">30-105<br />
JSC MS Word (Aug 95)</td>
<td colspan="17"><strong>STANDARD FORM 30</strong> (Rev. 10-83)<br />
Prescribed by GSA<br />
FAR (48 CFR) 53.243</td>
<td colspan="2"></td>
</tr>
</tbody>
</table>

**INSTRUCTIONS**

**Instructions for items other than those that are self-explanatory, are
as follows:**

+-----------------------------------+-----------------------------------+
| \(a\) [Item 1 (Contract ID        | \(2\) Accounting classification   |
| Code)]{.underline}. Insert the    | \_\_\_\_\_\_\_\_\_\_\_\_\_        |
| contract type identification code |                                   |
| that appears in the title block   | Net decrease                      |
| of the contract being modified.   | \$\_\_\_\_\_\_\_\_\_\_\_\_\_      |
|                                   |                                   |
| \(b\) [Item 3 (Effective          | NOTE: If there are changes to     |
| date)]{.underline}                | multiple accounting               |
|                                   | classifications that cannot be    |
| \(1\) For a solicitation          | placed in block 12, insert an     |
| amendment, change order, or       | asterisk and the words \"See      |
| administrative change, the        | continuation sheet\".             |
| effective date shall be the issue |                                   |
| date of the amendment, change     | \(g\) [Item 13]{.underline}.      |
| order, or administrative change.  | Check the appropriate box to      |
|                                   | indicate the type of              |
| \(2\) For a supplemental          | modification. Insert in the       |
| agreement, the effective date     | corresponding blank the authority |
| shall be the date agreed to by    | under which the modification is   |
| the contracting parties.          | issued. Check whether or not      |
|                                   | contractor must sign this         |
| \(3\) For a modification issued   | document. (See FAR 43.103.)       |
| as an initial or confirming       |                                   |
| notice of termination for the     | \(h\) [Item 14 (Description of    |
| convenience of the Government,    | Amen                              |
| the effective dateand the         | dment/Modification]{.underline}). |
| modification number of the        |                                   |
| confirming notice shall be the    | \(1\) Organize amendments or      |
| same as the effective date and    | modifications under the           |
| modification number of the        | appropriate Uniform Contract      |
| initial notice.                   | Format (UCF)section headings from |
|                                   | the applicable solicitation or    |
| \(4\) For a modification          | contract. The UCF table of        |
| converting a termination for      | contents, however shall not be    |
| default to a termination for the  | set forth in this document.       |
| convenience of the Government,    |                                   |
| the effective date shall be the   | \(2\) Indicate the impact of the  |
| same as the effective date of the | modification on the overall total |
| termination for default.          | contract price by inserting one   |
|                                   | of the following entries.         |
| \(5\) For a modification          |                                   |
| confirming the contracting        | \(I\) Total contract price        |
| officer\'s determination of the   | increased by \$\_\_\_\_\_\_\_\_\_ |
| amount due in settlement of a     |                                   |
| contract termination, the         | \(ii\) Total contract price       |
| effective date shall be the same  | decreased by \$\_\_\_\_\_\_\_\_\_ |
| as the effective date of the      |                                   |
| initial decision.                 | \(iii\) Total contract price      |
|                                   | unchanged.                        |
| \(c\) [Item 6 (Issued             |                                   |
| By]{.underline}). Insert the name | \(3\) State reason for            |
| and address of the issuing        | modification.                     |
| office. If applicable, insert the |                                   |
| appropriate issuing office code   | \(4\) When removing, reinstating, |
| in the code block.                | or adding funds, identify the     |
|                                   | contract items and accounting     |
| \(d\) [Item 8 (Name and Address   | classifications.                  |
| of Contractor]{.underline}). For  |                                   |
| modifications to a contract or    | \(5\) When the SF 30 is used to   |
| order, enter the contractor\'s    | reflect a determinationby the     |
| name, address, and code as shown  | contracting officer of the amount |
| in the original contract or       | due in settlement of a contract   |
| order, unless changed by this or  | terminated for the convenience of |
| a previous modification.          | the Government, the entry in Item |
|                                   | 14 of the modification may be     |
| \(e\) [Items 9, (Amendment of     | limited to -                      |
| Solicitation No.-Dated), and 10,  |                                   |
| (Modification of Contract/Order   | \(I\) A reference to the letter   |
| No.- Dated]{.underline}). Check   | determination; and                |
| the appropriate box and in the    |                                   |
| corresponding blanks insert the   | \(ii\) A statement of the net     |
| number and date of the original   | amount determined to be due in    |
| solicitation, contract, or order. | settlement of the contract.       |
|                                   |                                   |
| \(f\) [Item 12 (Accounting and    | \(6\) Include subject matter or   |
| Appropriation Data]{.underline}). | short title of                    |
| When appropriate, indicate the    | solicitation/contract where       |
| impact of the modification on     | feasible.                         |
| each affected accounting          |                                   |
| classification by inserting one   | \(I\) Item 16B. The contracting   |
| of the following entries:         | officer\'s signature is not       |
|                                   | required on solicitation          |
| \(1\) Accounting classification   | amendments. The contracting       |
| \_\_\_\_\_\_\_\_\_\_\_\_          | officer\'s signature is normally  |
|                                   | affixed last on supplement mental |
| Net increase                      | agreements.                       |
| \$\_\_\_\_\_\_\_\_\_\_\_\_        |                                   |
+-----------------------------------+-----------------------------------+
|                                   | **STANDARD FORM 30 BACK** (REV.   |
|                                   | 10-83)                            |
+-----------------------------------+-----------------------------------+