Energy West Development, Inc.

Original Volume No. 1

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Effective Date: 06/11/2010, Docket: RP10-732-000, Status: Effective

Third Revised Sheet No. 28 Third Revised Sheet No. 28

Superseding: Second Revised Sheet No. 28

General Terms and Conditions

2.26 Nomination. The level of information required to define a nomination for communications

purposes is a line item containing all defined components.

2.27 Intra-day Nomination. The term “Intra-day Nomination” is a nomination submitted after the

nomination deadline whose effective time is no earlier than the beginning of the Gas Day

and runs through the end of that Gas Day.

2.28 Data Elements. All trading partners should accept all NAESB standard elements. Usage

should be characterized as either mandatory, conditional, sender’s option, business

conditional, and mutually agreeable.

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.