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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 K1eegDK2nYB5HV+abQsMMMuXXEpBq+UMDrhiaROBqUGw8mbiyomAESIKFCmC4jqV
 RxeeOfdExuW11blf+599cg==

<SEC-DOCUMENT>9999999995-07-002410.txt : 20070618
<SEC-HEADER>9999999995-07-002410.hdr.sgml : 20070618
<ACCEPTANCE-DATETIME>20070618001540
ACCESSION NUMBER:		9999999995-07-002410
CONFORMED SUBMISSION TYPE:	EFFECT
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20070615
DATE AS OF CHANGE:		20070618
EFFECTIVENESS DATE:		20070615

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BALTIMORE GAS & ELECTRIC CO
		CENTRAL INDEX KEY:			0000009466
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
		IRS NUMBER:				520280210
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		EFFECT
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-141366
		FILM NUMBER:		07924455

	BUSINESS ADDRESS:	
		STREET 1:		39 WEST LEXINGTON STREET
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21201
		BUSINESS PHONE:		4107833624

	MAIL ADDRESS:	
		STREET 1:		39 WEST LEXINGTON STREET
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21201

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RSB BONDCO LLC
		CENTRAL INDEX KEY:			0001398570
		IRS NUMBER:				412233956
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		EFFECT
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-141366-01
		FILM NUMBER:		07924456

	BUSINESS ADDRESS:	
		STREET 1:		C/O CONSTELLATION ENERGY GROUP, INC.
		STREET 2:		750 E. PRATT STREET, 17TH FLOOR
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21202
		BUSINESS PHONE:		(410) 783-3011

	MAIL ADDRESS:	
		STREET 1:		C/O CONSTELLATION ENERGY GROUP, INC.
		STREET 2:		750 E. PRATT STREET, 17TH FLOOR
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21202
</SEC-HEADER>
<DOCUMENT>
<TYPE>EFFECT
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0101</schemaVersion>

    <submissionType>EFFECT</submissionType>

    <act>33</act>

    <testOrLive>LIVE</testOrLive>

    <effectiveData>
        <finalEffectivenessDispDate>2007-06-15</finalEffectivenessDispDate>
        <finalEffectivenessDispTime>12:00:00</finalEffectivenessDispTime>
        <form>S-3</form>
        <filer>
            <cik>0000009466</cik>
            <entityName>BALTIMORE GAS &amp; ELECTRIC CO</entityName>
            <fileNumber>333-141366</fileNumber>
        </filer>
        <filer>
            <cik>0001398570</cik>
            <entityName>RSB BONDCO LLC</entityName>
            <fileNumber>333-141366-01</fileNumber>
        </filer>
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</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
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