BlackRock MuniHoldings California Quality Fund (MUC) 8-K Regulation FD Disclosure

Exhibit 99.1

Class III (Term expires 2022)

Richard E. Cavanagh

Cynthia L. Egan

Robert Fairbairn

Stayce D. Harris

Class I (Term expires 2023)

Michael J. Castellano

R. Glenn Hubbard

W. Carl Kester^*

John M. Perlowski

Lorenzo A. Flores

Class II (Term expires 2024)

Karen P. Robards

Frank J. Fabozzi^*

Catherine A. Lynch

J. Phillip Holloman

^*  Holders of preferred shares are entitled to vote as a separate class to elect W. Carl Kester and Frank J. Fabozzi.