BlackRock MuniHoldings California Quality Fund (MUC) N-14 8C Registration statement for closed-end investment company

Exhibit (16)

POWER OF ATTORNEY

The undersigned, Michael J. Castellano, Richard E. Cavanagh, Cynthia L. Egan, Frank J. Fabozzi, Lorenzo A. Flores, Stayce D. Harris, J. Phillip Holloman, R. Glenn Hubbard, W. Carl Kester, Catherine A. Lynch, Karen P. Robards, Robert W. Fairbairn and John M. Perlowski, Directors of each of BlackRock Muni Intermediate Duration Fund, Inc. (“MUI”), BlackRock MuniHoldings California Quality Fund, Inc. (“MUC”) and BlackRock MuniHoldings New Jersey Quality Fund, Inc. (“MUJ” and collectively with MUI and MUC, the “Funds”), hereby authorize John M. Perlowski, Trent Walker, Jay M. Fife, Jennifer McGovern and Janey Ahn, or any of them, as attorney-in-fact, to sign on his or her behalf in the capacities indicated (and not in such person’s personal individual capacity for personal financial or estate planning), the Registration Statement on Form N-14 for each Fund or any amendment thereto (including any pre-effective or post-effective amendments) for or on behalf of each Fund and to file the same, with all exhibits thereto, with the Securities and Exchange Commission.

This Power of Attorney may be executed in multiple counterparts, each of which shall be deemed an original, but which taken together shall constitute one instrument.

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IN WITNESS WHEREOF, the undersigned have executed this Power of Attorney as of the 30th day of September, 2021.

Signature	Title
/s/ Michael J. Castellano Michael J. Castellano	Director
/s/ Richard E. Cavanagh Richard E. Cavanagh	Director
/s/ Cynthia L. Egan Cynthia L. Egan	Director
/s/ Frank J. Fabozzi Frank J. Fabozzi	Director
/s/ Lorenzo A. Flores Lorenzo A. Flores	Director
/s/ Stayce D. Harris Stayce D. Harris	Director
/s/ J. Phillip Holloman J. Phillip Holloman	Director
/s/ R. Glenn Hubbard R. Glenn Hubbard	Director
/s/ W. Carl Kester W. Carl Kester	Director
/s/ Catherine A. Lynch Catherine A. Lynch	Director
/s/ Karen P. Robards Karen P. Robards	Director
/s/ Robert W. Fairbairn Robert W. Fairbairn	Director
/s/ John M. Perlowski John M. Perlowski	Director

[Signature Page to Power of Attorney for Registration Statements on Form N-14]