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Objective: To describe quadrivalent human papillomavirus (HPV) vaccination coverage achieved in the HPV vaccination catch-up program for girls aged 12-17 years., Design: Analysis of data from the Australian National HPV Vaccination Program Register., Participants: Girls aged 12-17 years as at 30 June 2007., Main Outcome Measures: HPV vaccine coverage by dose (1, 2 and 3), age and state of residence, using Australian Bureau of Statistics estimates of resident populations as the denominator., Results: Notified vaccination coverage for girls aged 12-17 years nationally was 83% for dose 1, 78% for dose 2 and 70% for dose 3. The Australian Capital Territory and Victoria recorded the highest three-dose coverage for the 12-17-year-old cohort overall at 75%. The highest national three-dose coverage rate by age was achieved in 12-year-olds (74%). In Queensland, coverage among Indigenous girls compared with non-Indigenous girls was lower with each dose (lower by 4% for dose 1, 10% for dose 2 and 15% for dose 3). This pattern was not seen in the NT, where initial coverage was 17% lower among Indigenous girls, but the course completion rate among those who started vaccination was identical (84%)., Conclusions: The catch-up HPV vaccination program delivered over 1.9 million doses of HPV vaccine to girls aged 12-17 years, resulting in 70% of girls in this age group being fully vaccinated. The range in coverage achieved and the lower uptake documented among Indigenous girls suggest that HPV vaccination programs can be further improved.