CERTIFICATE OF AMENDMENT
TO
CERTIFICATE OF TRUST
OF
GUGGENHEIM TAXABLE MUNICIPAL MANAGED DURATION TRUST

THIS Certificate of Amendment to Certificate of Trust of Guggenheim Taxable Municipal Managed Duration Trust (the “Trust”) is being duly executed and filed by the undersigned Trustees to amend the Certificate of Trust of a statutory trust formed under the Delaware Statutory Trust Act (12 Del. C.ss.3801, et. seq.) (the “Delaware Statutory Trust Statute”).

1.Name. The name of the Trust is Guggenheim Taxable Municipal Managed Duration Trust.

2.Amendment.  The Certificate of Trust of the Trust is hereby amended by changing the name of the Trust to “Guggenheim Taxable Municipal Bond & Investment Grade Debt Trust”.

3.Effective Date.  This Certificate of Amendment shall be effective on November 19, 2020.

[Signature Page Follows]

IN WITNESS WHEREOF, the undersigned Trustees of the Trust have duly executed this Certificate of Amendment in accordance with Section 3811(a)(2) of the Delaware Statutory Trust Statute.

/s/ Randall C. Barnes

Randall C. Barnes

As Trustee and not individually

/s/ Angela Brock-Kyle

Angela Brock-Kyle

As Trustee and not individually

/s/ Donald A. Chubb, Jr.

Donald A. Chubb, Jr.

As Trustee and not individually

/s/ Jerry B. Farley

Jerry B. Farley

As Trustee and not individually

/s/ Roman Friedrich III

Roman Friedrich III

As Trustee and not individually

/s/ Thomas F. Lydon, Jr.

Thomas F. Lydon, Jr.

As Trustee and not individually

/s/ Ronald A. Nyberg

Ronald A. Nyberg

As Trustee and not individually

/s/ Sandra G. Sponem

Sandra G. Sponem

As Trustee and not individually

/s/ Ronald E. Toupin, Jr.

Ronald E. Toupin, Jr.

As Trustee and not individually

/s/ Amy J. Lee

Amy J. Lee

As Trustee and not individually