Post-effective Amendment (investment Company, Rule 485(b)) (485bpos)

File No . 2-94930

811-4175

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933   [X]

  Pre-Effective Amendment No.     [__]

  Post-Effective Amendment No. 47     [X]

and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940   [X]

  Amendment No. 47     [X]

(Check appropriate box or boxes.)

Dreyfus Cash Management

(Exact Name of Registrant as Specified in Charter)

c/o The Dreyfus Corporation

200 Park Avenue, New York, New York 10166

(Address of Principal Executive Offices) (Zip Code)

  Registrant's Telephone Number, including Area Code: [phone]

John Pak, Esq.

200 Park Avenue

New York, New York 10166

(Name and Address of Agent for Service)

It is proposed that this filing will become effective (check appropriate box)

 

  X __ immediately upon filing pursuant to paragraph (b)

  _____   on (date) pursuant to paragraph (b)

  _____ (days) days after filing pursuant to paragraph (a)(1)

  _____   on (date) pursuant to paragraph (a)(1)

  _____ (days) days after filing pursuant to paragraph (a)(2)

  _____   on (date) pursuant to paragraph (a)(2) of Rule 485

If appropriate, check the following box:

  _____   this post-effective amendment designates a new effective date for a previously filed post-effective amendment.

 

SIGNATURES

  Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this Amendment to the Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933 and has duly caused this Amendment to the Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of New York, and State of New York on the 19th day of June 2013.

Dreyfus Cash Management

BY:	/s/ Bradley J. Skapyak*
	Bradley J. Skapyak, PRESIDENT

  Pursuant to the requirements of the Securities Act of 1933, this Amendment to the Registration Statement has been signed below by the following persons in the capacities and on the date indicated.

Signatures			Title		Date
/s/ Bradley J. Skapyak*			President (Principal Executive Officer)		06/19/2013
Bradley J. Skapyak
/s/ James Windels*			Treasurer (Principal Financial and Accounting Officer)		06/19/2013
James Windels
/s/ Joseph S. DiMartino*			Chairman of the Board		06/19/2013
Joseph S. DiMartino
/s/ Isabel P. Dunst*			Board Member		06/19/2013
Isabel P. Dunst
/s/ Robin A. Melvin*			Board Member		06/19/2013
Robin A. Melvin
/s/ Roslyn M. Watson*			Board Member		06/19/2013
Roslyn M. Watson
/s/ Benaree P. Wiley*			Board Member		06/19/2013
Benaree P. Wiley
*BY:	/s/ John B. Hammalian
	John B. Hammalian Attorney-in-Fact

 

INDEX OF EXHIBITS

Exhibits

EX-101.INS – Instance Document.

EX-101.SCH – Taxonomy.

EX-101.CAL – Calculation Linkbase.

EX-101.DEF – Definition Linkbase.

EX-101.LAB – Labels Linkbase.

EX-101.PRE – Presentation Linkbase.