    <SEC-DOCUMENT>0000230557-21-000021-index.html : 20210603
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    <ACCEPTANCE-DATETIME>20210603132550
    ACCESSION NUMBER:		0000230557-21-000021
    CONFORMED SUBMISSION TYPE:	S-3ASR
    PUBLIC DOCUMENT COUNT:		32
    FILED AS OF DATE:		20210603
    DATE AS OF CHANGE:		20210603
    EFFECTIVENESS DATE:		20210603

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			SELECTIVE INSURANCE GROUP INC
    		CENTRAL INDEX KEY:			0000230557
    		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
    		IRS NUMBER:				222168890
    		STATE OF INCORPORATION:			NJ
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		S-3ASR
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-256741
    		FILM NUMBER:		21991979

    	BUSINESS ADDRESS:
    		STREET 1:		40 WANTAGE AVENUE
    		CITY:			BRANCHVILLE
    		STATE:			NJ
    		ZIP:			07890
    		BUSINESS PHONE:		9739483000

    	MAIL ADDRESS:
    		STREET 1:		40 WANTAGE AVE
    		STREET 2:		40 WANTAGE AVE
    		CITY:			BRANCHVILLE
    		STATE:			NJ
    		ZIP:			07890

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	SRI CORP
    		DATE OF NAME CHANGE:	19860508
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>S-3ASR
    <SEQUENCE>1
    <FILENAME>a2021forms-3asr.htm
    <DESCRIPTION>S-3ASR
    <TEXT>
    Document 1 - file: a2021forms-3asr.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-5.1
    <SEQUENCE>2
    <FILENAME>exhibit_51.htm
    <DESCRIPTION>EX-5.1
    <TEXT>
    Document 2 - file: exhibit_51.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-5.2
    <SEQUENCE>3
    <FILENAME>exhibit_52.htm
    <DESCRIPTION>EX-5.2
    <TEXT>
    Document 3 - file: exhibit_52.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-23.1
    <SEQUENCE>4
    <FILENAME>exhibit_231.htm
    <DESCRIPTION>EX-23.1
    <TEXT>
    Document 4 - file: exhibit_231.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-24.1
    <SEQUENCE>5
    <FILENAME>exhibit_241.htm
    <DESCRIPTION>EX-24.1
    <TEXT>
    Document 5 - file: exhibit_241.htm

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    <DOCUMENT>
    <TYPE>EX-24.2
    <SEQUENCE>6
    <FILENAME>exhibit_242.htm
    <DESCRIPTION>EX-24.2
    <TEXT>
    Document 6 - file: exhibit_242.htm

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    <DOCUMENT>
    <TYPE>EX-24.3
    <SEQUENCE>7
    <FILENAME>exhibit_243.htm
    <DESCRIPTION>EX-24.3
    <TEXT>
    Document 7 - file: exhibit_243.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-24.4
    <SEQUENCE>8
    <FILENAME>exhibit_244.htm
    <DESCRIPTION>EX-24.4
    <TEXT>
    Document 8 - file: exhibit_244.htm

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    <DOCUMENT>
    <TYPE>EX-24.5
    <SEQUENCE>9
    <FILENAME>exhibit_245.htm
    <DESCRIPTION>EX-24.5
    <TEXT>
    Document 9 - file: exhibit_245.htm

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    <DOCUMENT>
    <TYPE>EX-24.6
    <SEQUENCE>10
    <FILENAME>exhibit_246.htm
    <DESCRIPTION>EX-24.6
    <TEXT>
    Document 10 - file: exhibit_246.htm

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    <DOCUMENT>
    <TYPE>EX-24.7
    <SEQUENCE>11
    <FILENAME>exhibit_247.htm
    <DESCRIPTION>EX-24.7
    <TEXT>
    Document 11 - file: exhibit_247.htm

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    <DOCUMENT>
    <TYPE>EX-24.8
    <SEQUENCE>12
    <FILENAME>exhibit_248.htm
    <DESCRIPTION>EX-24.8
    <TEXT>
    Document 12 - file: exhibit_248.htm

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    <TYPE>EX-24.9
    <SEQUENCE>13
    <FILENAME>exhibit_249.htm
    <DESCRIPTION>EX-24.9
    <TEXT>
    Document 13 - file: exhibit_249.htm

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    <TYPE>EX-24.10
    <SEQUENCE>14
    <FILENAME>exhibit_2410.htm
    <DESCRIPTION>EX-24.10
    <TEXT>
    Document 14 - file: exhibit_2410.htm

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    <TYPE>EX-24.11
    <SEQUENCE>15
    <FILENAME>exhibit_2411.htm
    <DESCRIPTION>EX-24.11
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    Document 15 - file: exhibit_2411.htm

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    <SEQUENCE>16
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    <DESCRIPTION>EX-24.12
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    Document 16 - file: exhibit_2412.htm

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    <TYPE>EX-24.13
    <SEQUENCE>17
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    <DESCRIPTION>EX-24.13
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    Document 17 - file: exhibit_2413.htm

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    <TYPE>EX-24.14
    <SEQUENCE>18
    <FILENAME>exhibit_2414.htm
    <DESCRIPTION>EX-24.14
    <TEXT>
    Document 18 - file: exhibit_2414.htm

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    <TYPE>EX-24.15
    <SEQUENCE>19
    <FILENAME>exhibit_2415.htm
    <DESCRIPTION>EX-24.15
    <TEXT>
    Document 19 - file: exhibit_2415.htm

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    <TYPE>EX-24.16
    <SEQUENCE>20
    <FILENAME>exhibit_2416.htm
    <DESCRIPTION>EX-24.16
    <TEXT>
    Document 20 - file: exhibit_2416.htm

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    <DOCUMENT>
    <TYPE>EX-25.1
    <SEQUENCE>21
    <FILENAME>exhibit_251.htm
    <DESCRIPTION>EX-25.1
    <TEXT>
    Document 21 - file: exhibit_251.htm

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    <DOCUMENT>
    <TYPE>EX-25.2
    <SEQUENCE>22
    <FILENAME>exhibit_252.htm
    <DESCRIPTION>EX-25.2
    <TEXT>
    Document 22 - file: exhibit_252.htm

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    <DOCUMENT>
    <TYPE>EX-25.3
    <SEQUENCE>23
    <FILENAME>exhibit_253.htm
    <DESCRIPTION>EX-25.3
    <TEXT>
    Document 23 - file: exhibit_253.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>image_0.jpg
    <TEXT>
    Document 24 - file: image_0.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
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    <TEXT>
    Document 25 - file: image_0b.jpg

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    <SEQUENCE>26
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    <TEXT>
    Document 26 - file: image_0f.jpg

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    Document 27 - file: image_1.jpg

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    <SEQUENCE>28
    <FILENAME>image_1a.jpg
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    Document 28 - file: image_1a.jpg

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    <SEQUENCE>29
    <FILENAME>image_1b.jpg
    <TEXT>
    Document 29 - file: image_1b.jpg

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    <SEQUENCE>30
    <FILENAME>image_2.jpg
    <TEXT>
    Document 30 - file: image_2.jpg

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    Document 31 - file: image_2a.jpg

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    <SEQUENCE>32
    <FILENAME>image_2b.jpg
    <TEXT>
    Document 32 - file: image_2b.jpg

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