<SEC-DOCUMENT>0000843781-18-000004-index.html : 20180529
<SEC-HEADER>0000843781-18-000004.hdr.sgml : 20180529
<ACCEPTANCE-DATETIME>20180529145037
ACCESSION NUMBER:		0000843781-18-000004
CONFORMED SUBMISSION TYPE:	485BPOS
PUBLIC DOCUMENT COUNT:		52
FILED AS OF DATE:		20180529
DATE AS OF CHANGE:		20180529
EFFECTIVENESS DATE:		20180601

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DREYFUS TREASURY SECURITIES CASH MANAGEMENT
		CENTRAL INDEX KEY:			0000843781
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			0131

	FILING VALUES:
		FORM TYPE:		485BPOS
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	033-25941
		FILM NUMBER:		18863970

	BUSINESS ADDRESS:	
		STREET 1:		THE DREYFUS CORPORATION
		STREET 2:		200 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166
		BUSINESS PHONE:		2129226400

	MAIL ADDRESS:	
		STREET 1:		C/O DREYFUS CORP
		STREET 2:		200 PARK AVENUE, 7TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DREYFUS TREASURY PRIME CASH MANAGEMENT
		DATE OF NAME CHANGE:	19920703

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DREYFUS TREASURY SECURITIES CASH MANAGEMENT
		CENTRAL INDEX KEY:			0000843781
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			0131

	FILING VALUES:
		FORM TYPE:		485BPOS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-05718
		FILM NUMBER:		18863971

	BUSINESS ADDRESS:	
		STREET 1:		THE DREYFUS CORPORATION
		STREET 2:		200 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166
		BUSINESS PHONE:		2129226400

	MAIL ADDRESS:	
		STREET 1:		C/O DREYFUS CORP
		STREET 2:		200 PARK AVENUE, 7TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DREYFUS TREASURY PRIME CASH MANAGEMENT
		DATE OF NAME CHANGE:	19920703
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000843781
<SERIES-ID>S000000113
<SERIES-NAME>DREYFUS TREASURY SECURITIES CASH MANAGEMENT
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000000255
<CLASS-CONTRACT-NAME>Institutional Shares
<CLASS-CONTRACT-TICKER-SYMBOL>DIRXX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000000256
<CLASS-CONTRACT-NAME>Investor Shares
<CLASS-CONTRACT-TICKER-SYMBOL>DVRXX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000000257
<CLASS-CONTRACT-NAME>Administrative Shares
<CLASS-CONTRACT-TICKER-SYMBOL>DARXX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000000258
<CLASS-CONTRACT-NAME>Participant Shares
<CLASS-CONTRACT-TICKER-SYMBOL>DPRXX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>485BPOS
<SEQUENCE>1
<FILENAME>lp1761.htm
<DESCRIPTION>POST-EFFECTIVE AMENDMENT NO. 52
<TEXT>
Document 1 - file: lp1761.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.A CHARTER <SEQUENCE>2 <FILENAME>certofamendment2017-761.htm <DESCRIPTION>CERTIFICATE OF AMENDMENT <TEXT> Document 2 - file: certofamendment2017-761.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.E UNDR CONTR <SEQUENCE>3 <FILENAME>bdsellingagrmt.htm <DESCRIPTION>BROKER DEALER SELLING AGREEMENT <TEXT> Document 3 - file: bdsellingagrmt.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.E UNDR CONTR <SEQUENCE>4 <FILENAME>banksellingagrmt.htm <DESCRIPTION>BANK SELLING AGREEMENT <TEXT> Document 4 - file: banksellingagrmt.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.J OTHER OPININ <SEQUENCE>5 <FILENAME>consent761.htm <DESCRIPTION>CONSENT OF INDEPENDENT ACCOUNTANT <TEXT> Document 5 - file: consent761.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.M 12B-1 PLAN <SEQUENCE>6 <FILENAME>serviceplan12b1.htm <DESCRIPTION>RULE 12B-1 PLAN <TEXT> Document 6 - file: serviceplan12b1.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.N 18F-3 PLAN <SEQUENCE>7 <FILENAME>rule18f3plan761.htm <DESCRIPTION>RULE 18F-3 PLAN <TEXT> Document 7 - file: rule18f3plan761.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.P CODE ETH <SEQUENCE>8 <FILENAME>codeofethicsnonmangmnt.htm <DESCRIPTION>CODE OF ETHICS <TEXT> Document 8 - file: codeofethicsnonmangmnt.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-24 <SEQUENCE>9 <FILENAME>poa761.htm <DESCRIPTION>POWER OF ATTORNEY <TEXT> Document 9 - file: poa761.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>12 <FILENAME>x18052911263500.jpg <TEXT> Document 12 - file: x18052911263500.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>13 <FILENAME>x18052913532600.jpg <TEXT> Document 13 - file: x18052913532600.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>14 <FILENAME>x18052913532601.jpg <TEXT> Document 14 - file: x18052913532601.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>15 <FILENAME>x18052913532602.jpg <TEXT> Document 15 - file: x18052913532602.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>16 <FILENAME>x18052913532603.jpg <TEXT> Document 16 - file: x18052913532603.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>17 <FILENAME>x18052913532604.jpg <TEXT> Document 17 - file: x18052913532604.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>18 <FILENAME>x18052913532605.jpg <TEXT> Document 18 - file: x18052913532605.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>19 <FILENAME>x18052913532606.jpg <TEXT> Document 19 - file: x18052913532606.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>20 <FILENAME>x18052913532607.jpg <TEXT> Document 20 - file: x18052913532607.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>21 <FILENAME>x18052913532700.jpg <TEXT> Document 21 - file: x18052913532700.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>22 <FILENAME>x18052913533600.jpg <TEXT> Document 22 - file: x18052913533600.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>23 <FILENAME>x18052913533601.jpg <TEXT> Document 23 - file: x18052913533601.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>24 <FILENAME>x18052913533602.jpg <TEXT> Document 24 - file: x18052913533602.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>25 <FILENAME>x18052913533603.jpg <TEXT> Document 25 - file: x18052913533603.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>26 <FILENAME>x18052913533604.jpg <TEXT> Document 26 - file: x18052913533604.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>27 <FILENAME>x18052913533605.jpg <TEXT> Document 27 - file: x18052913533605.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>28 <FILENAME>x18052913533700.jpg <TEXT> Document 28 - file: x18052913533700.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>29 <FILENAME>x18052913533701.jpg <TEXT> Document 29 - file: x18052913533701.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>30 <FILENAME>x18052913533702.jpg <TEXT> Document 30 - file: x18052913533702.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>31 <FILENAME>x18052913533703.jpg <TEXT> Document 31 - file: x18052913533703.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>32 <FILENAME>x18052913533704.jpg <TEXT> Document 32 - file: x18052913533704.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>33 <FILENAME>x18052913533800.jpg <TEXT> Document 33 - file: x18052913533800.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>34 <FILENAME>x18052913535000.jpg <TEXT> Document 34 - file: x18052913535000.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>35 <FILENAME>x18052913535001.jpg <TEXT> Document 35 - file: x18052913535001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>36 <FILENAME>x18052913535100.jpg <TEXT> Document 36 - file: x18052913535100.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>37 <FILENAME>x18052913535101.jpg <TEXT> Document 37 - file: x18052913535101.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>38 <FILENAME>x18052913535102.jpg <TEXT> Document 38 - file: x18052913535102.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>39 <FILENAME>x18052913535103.jpg <TEXT> Document 39 - file: x18052913535103.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>40 <FILENAME>x18052913535104.jpg <TEXT> Document 40 - file: x18052913535104.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>41 <FILENAME>x18052913535105.jpg <TEXT> Document 41 - file: x18052913535105.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>42 <FILENAME>x18052913535106.jpg <TEXT> Document 42 - file: x18052913535106.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>43 <FILENAME>x18052913535107.jpg <TEXT> Document 43 - file: x18052913535107.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>44 <FILENAME>x18052913535108.jpg <TEXT> Document 44 - file: x18052913535108.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>45 <FILENAME>x18052913535200.jpg <TEXT> Document 45 - file: x18052913535200.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>46 <FILENAME>x18052913540000.jpg <TEXT> Document 46 - file: x18052913540000.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>47 <FILENAME>x18052913540001.jpg <TEXT> Document 47 - file: x18052913540001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>48 <FILENAME>x18052913540002.jpg <TEXT> Document 48 - file: x18052913540002.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>49 <FILENAME>x18052913540003.jpg <TEXT> Document 49 - file: x18052913540003.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>50 <FILENAME>x18052913540004.jpg <TEXT> Document 50 - file: x18052913540004.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>51 <FILENAME>x18052913540005.jpg <TEXT> Document 51 - file: x18052913540005.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>52 <FILENAME>x18052913540006.jpg <TEXT> Document 52 - file: x18052913540006.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>53 <FILENAME>x18052913540007.jpg <TEXT> Document 53 - file: x18052913540007.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>54 <FILENAME>x18052914035401.jpg <TEXT> Document 54 - file: x18052914035401.jpg
</DOCUMENT> </SEC-DOCUMENT>