SECURITIES AND EXCHANGE COMMISSION
                                WASHINGTON, D.C.

                                    FORM 8-A


               FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                    PURSUANT TO SECTION 12(b) OR (g) OF THE
                        SECURITIES EXCHANGE ACT OF 1934


                      FIRST TRUST EXCHANGE-TRADED FUND IV
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             (Exact name of registrant as specified in its charter)


             MASSACHUSETTS                            See Exhibit 1
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        (State of Incorporation            (I.R.S. Employer Identification No.)
          or Organization)

   120 East Liberty Drive, Suite 400,
           Wheaton, Illinois                             60187
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         (Address of Principal                        (Zip Code)
           Executive Offices)

Securities to be registered pursuant to Section 12(b) of the Act:

          TITLE OF EACH CLASS                NAME OF EACH EXCHANGE ON WHICH
          TO BE SO REGISTERED                EACH CLASS IS TO BE REGISTERED

 Common Shares of Beneficial Interest,               NYSE Arca, Inc.
       $0.01 par value per share,
                   of
   First Trust EIP Carbon Impact ETF


If this form relates to the registration of a class of securities pursuant to
Section 12(b) of the Exchange Act and is effective pursuant to General
Instruction A. (c), check the following box.-- [X]

If  this  form  relates to the registration of a class of securities pursuant to
Section  12(g)  of  the  Exchange  Act  and  is  effective  pursuant  to General
Instruction A. (d), check the following box.-- [ ]

Securities  Act  registration  statement file number to which this form relates:
333-174332.





Securities to be registered pursuant to Section 12(g) of the Act:

                                      None
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                      TITLE OF EACH CLASS TO BE REGISTERED


                 INFORMATION REQUIRED IN REGISTRATION STATEMENT

ITEM 1.      DESCRIPTION OF REGISTRANT'S SECURITIES TO BE REGISTERED

     The securities to be registered hereunder are common shares of beneficial
interest, $0.01 par value per share (the "Shares") of the First Trust EIP Carbon
Impact ETF (the "Fund"), a series of the First Trust Exchange-Traded Fund IV
(the "Registrant"). An application for listing of the Shares of the Fund has
been filed with and approved by NYSE Arca, Inc. A description of the Shares is
contained in the Prospectus, which is a part of the Registration Statement on
Form N-1A (Registration Nos. 333-174332 and 811-22559), filed with the
Securities and Exchange Commission on August 6, 2019. Such description is
incorporated by reference herein.


ITEM 2.     EXHIBITS

      Pursuant to the "Instruction as to Exhibits" of Form 8-A, no exhibits are
filed herewith or incorporated by reference.




                                   SIGNATURE

      Pursuant to the requirements of Section 12 of the Securities Exchange Act
of 1934, the Registrant has duly caused this registration statement to be signed
on its behalf by the undersigned, thereto duly authorized.

                                   FIRST TRUST EXCHANGE-TRADED FUND IV


                                   By: /s/ Matt B. Farber, Assistant Secretary
                                       ---------------------------------------
                                       Matt B. Farber, Assistant Secretary


August 7, 2019






                                   Exhibit 1

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                 FUND                      I.R.S. EMPLOYER IDENTIFICATION NO.
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   First Trust EIP Carbon Impact ETF                   84-1991525
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