Although charter schools are frequently afforded flexibility from many state laws that govern traditional public schools, a growing number of charter school teachers have now unionized and introduced collective bargaining to the charter sector. Using data from a detailed content analysis of teacher CBAs from California, we compare the restrictiveness of CBAs in 75 unionized charter bargaining units to the restrictiveness of CBAs in 31 nearest neighbor traditional public school district bargaining units. We find that independent charter CBAs are much more flexible than the CBAs of traditional public school districts, but charter school CBAs of bargaining units combined with traditional public school districts are comparably restrictive.