when a nerc tag was created in the spreadsheet, the information was then distilled into a small csv formatted data packet which was disseminated via e-mail to all of the participants listed on the nerc tag. in this way, all participants of a transaction were able to determine which other electric utilities and power marketers were involved in the transaction, and what the roles of the other participants were. more importantly, in the event of a contingency such as a transmission line outage or generation failure, all participants could more easily be notified of the schedule change, and could then all act in cooperation to curtail the scheduled transaction.