Advance Baton Rouge late Tuesday announced the resignation of Chief Executive Officer Henry “Hank” Shepard in a news release.

According to the release, Shepard’s resignation was accepted Monday by the executive committee of the board of directors of the charter school association, which operates five charter schools, four in Baton Rouge.

Spokesman Matthew Broussard described Shepard’s resignation as a mutual agreement between him and board members regarding the future direction of the organization, but gave no further details.

“I want to thank Mr. Shepard for his commitment and dedication to improving the educational options for the parents and students of the Greater Baton Rouge Area,” said Jeff English, president of the group’s board.

English said the board is already looking for Shepard’s replacement and that his departure will not affect summer programs and preparations for the 2011-12 school year.