1. Document #06-2H Enrollment Process (via Uniform Electronic Transaction) Customer Supplier Distribution Company Customer authorizes Enrollment 10.3.2.1 Supplier sends Enrollment Request to Distribution Company (10.3.2.2) Distribution Company receives Enrollment Request from Supplier Distribution Company sends Enrollment Rejection to Supplier (10.3.2.5) (10.3.2.6) (10.3.2.8) No Supplier receives Enrollment Rejection Yes Account identity confirmed (10.3.2.3) No Yes Contains the required elements and account is eligible (10.3.2.4 and 10.3.2.5) Pending Enrollment (10.3.2.5) First In enrollment process (10.3.2.5) Yes No Revised 8/21/2006 1 Customer currently being served by another Supplier (10.3.2.5) Yes No 2 3 1

2. Document #06-2H Enrollment Process (via Uniform Electronic Transaction) Customer Supplier Distribution Company Revised 8/21/2006 Distribution Company sends Drop Request to current (First-in) or pending (Last-in) Supplier (1) (10.3.2.5)(10.3.2.7) Supplier (1) receives Drop Request 1 Distribution Company sends Enrollment Confirmation to new Supplier (10.3.2.5)(10.3.2.7) New Supplier receives Enrollment Confirmation 2 4 5 No Supplier (1) is required to send Drop Confirmation to the Distribution Company (10.3.2.13) Distribution Company receives Drop Confirmation No further action is required Supplier (1) sends Drop Confirmation to Distribution Company Yes 3 Account confirmed (10.3.2.13) Supplier sends Drop Rejection to Distribution Company No Distribution Company receives Drop Rejection 2

3. Document #06-2H Enrollment Process (via Uniform Electronic Transaction) Customer Supplier Distribution Company Supplier required to send confirmation letter to Customer (10.3.2.11) No further action required Supplier sends enrollment confirmation letter to Customer (10.3.2.11) Customer receives enrollment confirmation letter(s) Distribution Company sends enrollment confirmation letter to Customer (10.3.2.11) Distribution Company required to send confirmation letter to Customer (10.3.2.11) No further action required No Yes Customer wants to Rescind enrollment No further action required No Customer permitted to Rescind enrollment (10.3.2.9) No further action required Yes No Yes Revised 8/212006 5 4 6 Yes 3

4. Document #06-2H Enrollment Process (via Uniform Electronic Transaction) Customer Supplier Distribution Company Customer notifies the Distribution Company to Rescind enrollment and continue with current supplier (10.3.2.10) Yes Customer is currently served by another Supplier No Revised 8/21/2006 6 Supplier receives Drop Request Distribution Company sends Drop Request to Supplier (10.3.2.9) Distribution Company processes the customers Rescission (10.3.2.9) Customer notifies the Distribution Company to Rescind enrollment and continue with Distribution Company service (10.3.2.10) 8 Account confirmed (10.3.2.13) Supplier sends Drop Rejection to Distribution Company No Distribution Company receives Drop Rejection 7 4

5. Document #06-2H Enrollment Process (via Uniform Electronic Transaction) Customer Supplier Distribution Company Revised 8/21/2006 8 Distribution Company processes the Customers Rescission Distribution Company sends Drop Request to new Supplier (2) (10.3.2.9) Distribution Company sends Reinstatement Request to current Supplier (1) (10.3.2.10) New Supplier (2) receives and processes Drop Request No Supplier is required to send Drop Confirmation to the Distribution Company (10.3.2.13 or 10.3.2.17) Distribution Company receives Drop Confirmation No further action is required Supplier sends Drop Confirmation Yes 710 Account confirmed (10.3.2.13) New Supplier sends Drop Rejection to Distribution Company No Distribution Company receives Drop Rejection 9 5

6. Document #06-2H Enrollment Process (via Uniform Electronic Transaction) Customer Supplier Distribution Company Revised 8/21/2006 Current Supplier (1) receives Reinstatement Request Current Supplier (1) processes Reinstatement Request and sends Reinstatement Confirmation Distribution Company receives Reinstatement Confirmation 10 No New Supplier is required to send Drop Confirmation (8.3.2.17) Distribution Company receives Drop Confirmation No further action is required New Supplier sends Drop Confirmation Yes 9 Account confirmed (10.3.2.13) Current Supplier sends Reinstatement Rejection to Distribution Company No Distribution Company receives Reinstatement Rejection Yes 6