(www.MaritimeCyprus.com) The Indian Ocean Memorandum of Understanding (IOMOU) on Port State Control (PSC) has released its Annual Report for 2025, marking 25 years of regional collaboration dedicated to eliminating substandard shipping, protecting the marine environment, and safeguarding seafarer welfare . The report highlights a pivotal year of structural modernization, strategic enforcement campaigns, and a rising institutional focus on oversight for historically under-regulated maritime sectors . Core Inspection Metrics and Trends Enforcement data from 2025 reveals an increase in regional maritime traffic surveillance : Surveillance Volume: A total of 5,958 inspections were executed across the region, representing an 11.68% increase in inspection activity compared to 2024 . Deficiency and Detention Rates: Out of these, 3,072 vessels were found with non-compliances, generating 13,962 total recorded deficiencies . Severe infractions led to the detention of 261 ships . The overall regional detention rate ticked upward slightly to 4.38% (from 4.24% in 2024), while the average number of deficiencies per inspection rose to 2.34 . Disproportional Enforcement Burdens: Australia hosted the vast majority of regional enforcement activities, accounting for 2,769 inspections (46%), followed by Bangladesh at 1,085 inspections (18%) . Conversely, several member states recorded minimal localized inspection counts . High-Risk Ship Types and Flag State Vulnerabilities The 2025 data underscores that certain vessel classes and registrations carry heightened systemic risk Profiles : Performance by Ship Type: Bulk carriers represented the largest segment of inspections (3,147), maintaining a relatively low detention rate of 3.59% . However, smaller specialized utility vessels presented much higher risks; tugboats yielded an exceptionally high detention rate of 23.53% , followed by offshore service vessels at 10.53% . Flag Performance Variances: Among open registries with more than 75