Exhibit 99(a)(4)

MONTHLY SERVICERS CERTIFICATE

(TO BE DELIVERED EACH MONTH PURSUANT TO SECTION 3.01(b)(i)

OF THE SERIES 2003-1 TRANSITION PROPERTY SERVICING AGREEMENT)

ONCOR ELECTRIC DELIVERY TRANSITION BOND COMPANY LLC,

Series 2003-1 Bonds

Oncor Electric Delivery Company LLC, as Servicer

Pursuant to the Series 2003-1 Transition Property Servicing Agreement dated as of August 21, 2003 (the Series 2003-1 Transition Property Servicing Agreement) between Oncor Electric Delivery Company LLC, as Servicer, and
Oncor Electric Delivery Transition Bond Company LLC, as Issuer, the Servicer does hereby certify as follows:

SERIES 2003-1 COLLECTION
PERIOD: October 2007



|                            |  |                                             |                |                                         |   |                                                        |  |                                                           |              |  |   |             
|--------------------------- |  | ------------------------------------------- | -------------- | --------------------------------------- | - | ------------------------------------------------------ |  | --------------------------------------------------------- | ------------ |  | - | ------------
|Customer Class              |  | a. Series 2003-1Transition Chargesin Effect |                | b. Series 2003-1TransitionChargesBilled |   | c. ActualSeries
2003-1TransitionChargePaymentsReceived |  | d. Series 2003-1TransitionChargeRemittancesMade
toTrustee
|Residential Service         |  | $                                           | 0.000653 / kWh |                                         | $ | 2,233,835.16                                           |  | $                                                         | 2,658,928.78 |  | $ | 2,658,928.78
|General Service Secondary   |  |                                             |                |                                         | $ | 2,052,608.23                                           |  | $                                                         | 2,106,818.73 |  | $ | 2,106,818.73
|Non-demand                  |  | $                                           | 0.000295 / kWh |                                         |   |                                                        |  |                                                           |              |  |   |             
|Demand                      |  | $                                           | 0.167 / kW     |                                         |   |                                                        |  |                                                           |              |  |   |             
|General Service Primary     |  |                                             |                |                                         | $ | 237,237.75                                             |  | $                                                         | 270,357.58   |  | $ | 270,357.58  
|Non-demand                  |  | $                                           | 0.000205 / kWh |                                         |   |                                                        |  |                                                           |              |  |   |             
|Demand                      |  | $                                           | 0.150 / kW     |                                         |   |                                                        |  |                                                           |              |  |   |             
|High Voltage Service        |  | $                                           | 0.083 / kW     |                                         | $ | 137,875.29                                             |  | $                                                         | 136,325.73   |  | $ | 136,325.73  
|Lighting Service            |  | $                                           | 0.000761 / kWh |                                         | $ | 30,483.36                                              |  | $                                                         | 22,758.08    |  | $ | 22,758.08   
|Instantaneous Interruptible |  | $                                           | 0.091 / kW     |                                         | $ | 84,420.69                                              |  | $                                                         | 102,217.66   |  | $ | 102,217.66  
|Noticed Interruptible       |  | $                                           | 0.148 / kW     |                                         | $ | 133,167.70                                             |  | $                                                         | 135,625.79   |  | $ | 135,625.79  
|                            |  |                                             |                |                                         |   |                                                        |  |                                                           |              |  |   |             
|Total                       |  |                                             |                |                                         | $ | 4,909,628.18                                           |  | $                                                         | 5,433,032.35 |  | $ | 5,433,032.35



---

Capitalized terms used herein have their respective meanings set forth in the Series 2003-1 Transition
Property Servicing Agreement.

In WITNESS HEREOF, the undersigned has duly executed
and delivered this Monthly Servicers Certificate this 7thday of November, 2007.



ONCOR ELECTRIC DELIVERY COMPANY LLC, as
ServicerBy:

/s/ John M. CaseyName:

John M. CaseyTitle:

Treasurer