Residency, for most doctors in Australia, is typically a further one or two years following internship spent working in the hospital (or occasionally, in community health settings) to gain more clinical experience in a range of settings with increased levels of responsibility. In contrast to medical education following the United States system, internship and residency in Australia are considered pre-vocational terms where doctors have yet to formally commence their training in a specific speciality. While some specialist medical colleges accept entrants after successful completion of internship or postgraduate year 1 (PGY-1), most prefer applicants to have completed at least a further 2 to 3 years (or more) of pre-vocational training at the level of a resident (PGY-2 to PGY-3 or more) in order to have gained sufficient additional clinical experience prior to applying for a specialist training program. Clinical rotations and terms are at the preference of the resident (and dependent on the availability of the health service); there are no mandatory terms to fulfill; for example, if the resident has aspirations to pursue enrolment in surgical speciality training, they would preference and request more rotations in the various surgical specialties (for instance, Neurosurgery, Cardiothoracic, or Urology), versus if the resident had interests to pursue emergency medicine, he or she would probably benefit from further rotations in the various critical care specialties (that is, Intensive Care Medicine, Emergency Medicine, or Anaesthetics).