Michigan Gas Storage Company

First Revised Volume No 1

Effective Date: 05/01/2001, Docket: RP01-358-000, Status: Effective

Sixth Revised Sheet No. 54A Sixth Revised Sheet No. 54A : Superseded

Superseding: Fifth Revised Sheet No. 54A

GENERAL TERMS AND CONDITIONS

(continued)

14.6 Standard Business Practices

Transporter has adopted all of the Business Practices and Electronic

Communication Standards which were incorporated in 18 CFR Section

284.10(b) in accordance with Order Nos. 587, 587-B, 587-C, 587-G,

587-H and 587-K issued in Docket No. RM96-1-000 and has adopted all

those that were incorporated in accordance with Order No. 587-M,

except for those regarding which Transporter has sought a waiver or

extension of time.

In addition to the standards reflected in other portions of this

tariff, the following GISB Standards, definitions, data sets, and

agreements are incorporated herein by reference:

Version 1.3:

1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7

4.3.9

5.4.1, 5.4.2, 5.4.3, 5.4.4, 5.4.5, 5.4.6, 5.4.7, 5.4.8, 5.4.9, 5.4.10,

5.4.11, 5.4.12, 5.4.13, 5.4.14, 5.4.15, 5.4.16, 5.4.17