public static boolean isCellAuthorizationSupported(Configuration conf) {
    return AccessChecker.isAuthorizationSupported(conf)
      && (HFile.getFormatVersion(conf) >= HFile.MIN_FORMAT_VERSION_WITH_TAGS);
  }
if the ACL table is available, only relevant in the master
hbase-server/src/main/java/org/apache/hadoop/hbase/security/access/AccessController.java