Tuscarora Gas Transmission Company

First Revised Volume No. 1

Effective Date: 07/01/2009, Docket: RP09-926-000, Status: Effective

First Revised Sheet No. 59 First Revised Sheet No. 59

Superseding: Original Sheet No. 59

GENERAL TERMS AND CONDITIONS

2. DEFINITION OF TERMS (continued)

2.33 Data Elements. (continued)

Mandatory (M) means the data element (information) must be supplied in

the transaction.

Conditional (C) means that the presence of data in a field is

determined by the presence or lack of data in another field within

the transmittal or related data sets.

Sender's option (SO) means that this element is optional for the

sender to send and, if sent, the receiver should receive and process.

Business conditional (BC) means the data element is based on current

variations in business practice. The business practice will be

described herein, with an example. Over time, NAESB expects that as

business practices are standardized, elements will move out of this

category. Business Conditional elements which are not

supported/required by the receiver will be acknowledged in the

response document with a warning message code indicating that the

data element was ignored by the receiver.

Mutually agreeable (MA) means that the data element is mutually agreed

to between trading partners. It must be presented to NAESB for

technical implementation. It does not, by its definition, create a

NAESB standard business practice. Usage of this element in no way can

be mandated for inclusion by either trading partner in order to

achieve a level of service.

2.34 Critical Notices. The term "Critical Notices" should be defined to

pertain to information on transportation service provider conditions

that affect scheduling or adversely affect scheduled gas flow.

2.35 NAESB Standards. The term "NAESB Standards" shall mean the

business practices, electronic communication, and data dictionary

standards which were issued by the Wholesale Gas Quadrant (WGQ) of

the North American Energy Standards Board (NAESB) and adopted by the

Commission.

In addition to the NAESB standards incorporated within the text of

other provisions of this FERC Gas Tariff, Tuscarora incorporates by

reference the following standards by level of compliance:

NAESB Version 1.8

0.2.1 through 0.2.3; 0.3.1; 0.3.2; 0.3.11 through 0.3.15; 0.4.1;

1.2.5; 1.2.8 through 1.2.11; 1.3.8; 1.3.15; 1.3.23 through 1.3.25;

(Continued)