Earlier this month, the NLRB issued a complaint against the Cesar Chavez charter school network in Washington, D.C. The board found that all four of the public charter schools had unilaterally changed teachers’ working conditions without engaging in the collective bargaining process and also implemented rules that interfered with and restrained employees’ from exercising their rights. In June of last year, Cesar Chavez middle school became the first charter school in the nation’s capital to unionize, and its administration has been under investigation by the labor board since last August. Since then, the American Federation of Teachers has filed two additional complaints on behalf of Cesar Chavez teachers in December and early February. The board has yet to substantiate these new complaints. According to teacher Christian Herr, who sits on AFT’s collective bargaining board, it is unclear how the administration will respond to the NLRB complaints at this time.
See "National Labor Relations Board Finds That Cesar Chavez Charter Network Violated Federal Labor Law", Rachel M. Cohen, Washington City Paper, March 21, 2018