The Clinical Indemnity Scheme (CIS) indemnifies public hospitals, doctors, nurses, nurse midwives and allied healthcare professionals in relation to the provision of their professional medical services. Once a doctor is providing his/her professional medical services for and on behalf of his/her employing public hospital, whether his/her hours exceed the limit imposed by the EU Working Time Directive, that doctor continues to be indemnified by the CIS. e principle of Enterprise liability, which underpins the CIS, ensures that the doctor is covered, vicariously, for all professional medical services provided by him/her on behalf of his/her employing hospital.