AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
1. Contract ID Code
Pageof Pages
 
1
2
 
2.Amendment/Modification No.
3.Effective Date
4.Requisition/Purchase Req. No.
5.Project No. (if applicable)
 
0001
 
6.Issued By
Code 000SB
7.Administered By(If other than Item 6) 
Code 
 
NATIONAL INST OF STDS AND TECHNOLOGY
SEE BLOCK 6
 
100 BUREAU DRIVESTOP 3571
 
BUILDING 301 ROOM B129
 
GAITHERSBURG MD20899-3571
 
WIDDUP, JOSEPH301-975-6324
 
8.Name and Address of Contractor(No., Street, County, and Zip Code)
(X)
9A.Amendment of Solicitation No.
 
 
NEUSTAR
Vendor ID: 00007158
9B.Date (See Item 11)
 
1120 VERMONT AVENUE NW
DUNS: 112403295
 
SUITE 400
10A.Modification of Contract/Order No.
 
WASHINGTON DC 20005
CAGE:
X
SB1335-02-W-0175
 
10B.Date (See Item 13)
 
Oct 26, 2001
 
Code
Facility Code
 
11.THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
 
The above numbered solicitation is amended as set forth in item 14. The hour and date specified for receipt of Offers
isextended
is not extended.
 
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: 
 
(a) By completing items 8 and 15, and returning­­­­­­ 
copies of the amendment; (b) By acknowledging receipt of this amendment on each copy 

of the offer 
submitted; or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDG-
 
MENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT
 
IN REJECTION OF 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 or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.
 
12.Accounting and Appropriation Data(if required)
 
610100010204000090919000009000090900000000000000$ US0.00
 
13.THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
 
(x)
A.This change order is issued pursuant to:(Specify authority)The changes set forth in item 14 are made in the Contract Order No. in item 10A.
 
 
B.The above numbered Contract/Order is modified to reflect the administrative changes(such as changes in paying office, appropriation date, etc.)

Set fourth item 14, pursuant to the authority of FAR 43.103 (b)
 
X
C.This supplemental agreement is entered into pursuant to authority of:
 
FAR 43.103(a)
 
D.Other (Specify type of modification and authority)
 
 
E.IMPORTANT:Contractor
is not,
X
is required to sign this document and return 1 copies to the issuing office.
 

14.Description of Amendment/Modification(Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

A.The purpose of this modification is to modify Section J, Registration Process: Land Rush Implementation, An Overview of the Land Rush Solution, The Benefits of NeuStar's Land Rush Implementation Approach in the Contractor's quotation, which is incorporated by reference into this Purchase Order, as follows:

-- Delete the batch-based Landrush process originally proposed by the Contractor.

-- The Contractor must implement increased monitoring of the system loads to ensure equality among its customers and that the Contractor's systems do not become overloaded.

-- The Contractor must proceed with a first-come-first-served ("FCFS") registration approach following Sunrise.

B.The adoption of the FCFS approach must not affect the overall timeline for the usTLD startup phases described on page I-2 of the Contractor's quotation.The Sunrise process will remain unchanged.

END OF MODIFICATION

15A. Name and Title of Signer
James A. Casey		 16.a Name and Title of Contracting Officer
WIDDUP, Joseph    301-975-6324
CONTRACTING OFFICER  jwiddup@nist.gov
15B. Contractor/Offeror
/s/James A. Casey		 16B. Signature of Contracting Officer
/s/ Joseph Widdup
02-04-2002 02-04-2002