responsible

adjective [原级]（对某人、某事）负责的；（对事故、错误、罪行等）负有责任的，应承担责任的；（工作或职位）重要的，责任重大的；可靠的，负责任的；作为缘由的，应受归咎的；向......负责的，向......汇报的

If you are responsible to a person or group, they have authority over you and you have to report to them about what you do. ^{向…汇报的}