New Marine Environmental Protection Standard: ISO 6319:2026 Leads March 2026 Maritime Updates

March 2026 marks a significant advancement for marine environmental protection with the release of ISO 6319:2026, a comprehensive new standard designed to elevate practices for in-water cleaning (IWC) of biofouling on ships. As maritime industries adapt to increasing sustainability and regulatory expectations, this international specification delivers robust guidance to port authorities, ship operators, IWC contractors, regulatory agencies, and marine equipment manufacturers. This article explores the latest requirements, best practices, and transformative impacts introduced by this essential addition to global marine protection standards.

Overview / Introduction

Marine environmental protection is rapidly evolving as shipping companies, technology providers, and regulators confront the dual challenges of operational efficiency and ecological stewardship. Biofouling—the accumulation of marine organisms on hulls and niche areas—has emerged as a major contributor to increased fuel use, greenhouse gas emissions, and the spread of invasive aquatic species. Effective in-water cleaning (IWC) is critical for mitigating these risks.

The newly published ISO 6319:2026 fills a critical gap by standardizing IWC operations, documentation, and reporting. For marine industry professionals, this article reveals:

• The standard’s full scope and innovative requirements
• How ISO 6319:2026 aligns with international policies and IMO guidelines
• Key technical and compliance implications for diverse stakeholders
• Best practices for safe, environmentally sound cleaning
• The broader industry impact and compliance outlook

Detailed Standards Coverage

ISO 6319:2026 – Ships and Marine Technology: Marine Environment Protection – In-Water Cleaning of Biofouling on Ships

Ships and marine technology — Marine environment protection — Conducting and documenting in-water cleaning of biofouling on ships

Published: 2026-03-11 by ISO

Scope and Purpose: ISO 6319:2026 is the first internationally harmonized standard to codify requirements and best practices for planning, executing, and documenting IWC activities on ship hulls and submerged external surfaces. The goal is to ensure operations are environmentally safe, efficient, and properly recorded, thus supporting global initiatives to contain the transfer of invasive aquatic species (IAS) and reduce harmful emissions.

This standard covers:

• IWC of hulls and niche areas addressing all biofouling types (biofilms, microfouling, macrofouling)
• Safety and environmental actions during operations
• Detailed protocols for planning, equipment compatibility, operator training, contingency, and documentation
• Stringent guidelines for post-cleaning assessments and reporting
• Stakeholder guidance: for shipowners, ports, IWC and inspection service providers, equipment and coating manufacturers, and regulators

Key Requirements and Specifications:

ISO 6319:2026 stipulates a stepwise process for IWC, emphasizing:

• Preparations and Planning:
  • Compatibility assessments between anti-fouling coatings (AFC) and IWC systems
  • Contingency, environmental, health, and safety plans
  • Quality management system (QMS) documentation (e.g., ISO 9001 compliance)
  • Biofouling management plan (BFMP) and record-keeping via biofouling record book (BFRB)
• Hull Condition Assessment:
  • Visual assessment of biofouling and coating state before cleaning
  • Use of inspection reports, ROVs, and other imaging technologies for documentation
• Approval Workflows:
  • Single and multiple event permits from authorities, facilitated by comprehensive documentation
  • Pre-cleaning coordination among ship, port, and service providers
• In-Water Cleaning Execution:
  • Compliance with specific operations protocols (including capture of removed materials for macrofouling)
  • Monitoring water quality and environmental releases using ISO 20679 testing or equivalent
  • Operator training and incident readiness (emergency and environmental contingencies)
• Post-Cleaning and Reporting:
  • Mandatory photographic and video documentation of cleaned zones
  • Standardized reporting on areas cleaned, areas to be avoided, and waste capture
  • Record retention to satisfy port and regulatory review

Who Needs to Comply?

• Shipowners, managers, and operators
• Biofouling IWC and inspection service providers
• Ports and regulatory authorities reviewing and permitting IWC activities
• Equipment and antifouling coating manufacturers
• Marine certification and compliance agencies

Practical Implementation Implications:

• Ensures uniform global practices, streamlining approvals for IWC activities across jurisdictions
• Facilitates investments in compatible cleaning and capture technologies
• Enhances transparency in reporting to regulators and port authorities
• Underpins compliance with broader marine protection directives and IMO guidelines
• Reinforces operator training and safety culture, minimizing risks to personnel and ecosystems

Notable Changes:

• ISO 6319:2026 establishes, for the first time, structured international procedures and documentation requirements, bridging gaps across national and local rules.
• Aligns specifically with the IMO 2023 Biofouling Guidelines, introducing rigor for capture systems and differentiating microfouling (capture not required) from macrofouling (capture required).

Key highlights:

• Globally harmonized approach for planning and executing IWC
• Stringent health, safety, and quality management requirements
• Detailed environmental protection and documentation protocols

Access the full standard:View ISO 6319:2026 on iTeh Standards

Industry Impact & Compliance

Implementing ISO 6319:2026 has profound implications for the marine and shipping industries:

• Elevated Environmental Protection: Adoption of these guidelines sharply reduces the transfer of invasive species and contaminant release during cleaning, preserving local and global marine ecosystems.
• Operational Efficiency: Standardized IWC reduces unnecessary downtime, streamlines permit approvals, and improves hull performance, leading to fuel savings and GHG reduction.
• Risk Mitigation: Comprehensive safety planning and operator training lower occupational safety risks, minimize accidental releases, and improve emergency response readiness.
• Reputational and Regulatory Benefits: Early, proactive compliance with ISO 6319:2026 enhances a company’s credentials with clients, insurers, and environmental agencies, potentially reducing insurance premiums and audit scrutiny.
• Compliance and Deadlines: While not a mandatory law, contracting parties, ports, and regulatory agencies are expected to use ISO 6319:2026 as a technical baseline starting March 2026. Organizations should incorporate these processes into their biofouling management plans and maintenance regimes as soon as possible.

Benefits of adopting ISO 6319:2026:

• Facilitates global trade by providing a trusted standard for port approvals
• Reduces risk of port entry delays and unexpected cleaning bans
• Demonstrates environmental responsibility to stakeholders

Risks of non-compliance:

• Port access restrictions and increased scrutiny
• Environmental fines and reputational damage
• Higher fuel and maintenance costs due to poor hull performance

Technical Insights

Common Technical Requirements

ISO 6319:2026 introduces several universal requirements for IWC processes:

• Thorough compatibility assessments between IWC equipment and hull coatings to prevent damage and maintain coating effectiveness.
• Strict water quality monitoring before, during, and after cleaning, ensuring that contamination levels do not breach set thresholds.
• Detailed documentation protocols, including digital and visual records (photos/videos) for every cleaning event, to support audits and future planning.
• Robust training requirements for all operators and crew involved in IWC, extending to chemical and biological hazard prevention.
• Contingency planning for both ship-related and cleaning operation emergencies.

Best Practices for Implementation

1. Integrate Quality Management Systems (QMS):
   • Align cleaning workflows with ISO 9001 or equivalent, ensuring reliable record management and process validation.
2. Early Stakeholder Engagement:
   • Collaborate with port authorities, equipment suppliers, and coating manufacturers at the planning stage for seamless permit acquisition.
3. Leverage Digital Reporting Tools:
   • Use digital platforms for the BFMP and BFRB to streamline real-time updates, facilitate audits, and consolidate cleaning history.
4. Adopt Advanced Cleaning Technologies:
   • Invest in IWC systems with proven capture capabilities, ROVs, AUVs, and robust water quality testing instrumentation.
5. Schedule Regular Operator Training:
   • Document all training activities, including emergency and environmental response, to maintain a safe, skilled workforce.

Testing and Certification Considerations

• All cleaning equipment must undergo water quality impact assessment as per ISO 20679 or recognized equivalent standards.
• Operators and service organizations should seek ISO 9001 QMS certification and maintain comprehensive records for inspection.
• Incident and contingency response exercises should be held regularly, in line with documented plans.

Conclusion / Next Steps

The publication of ISO 6319:2026 ushers in a new era for marine environmental protection by standardizing safe, transparent, and sustainable in-water cleaning of biofouling. Ship operators, ports, and IWC service providers should begin reviewing and updating their biofouling management and cleaning procedures to align with the new requirements.

Key takeaways:

• ISO 6319:2026 sets global best practices for environmentally safe IWC
• Emphasizes rigorous planning, compatibility, and documentation
• Offers clear pathways for compliance, operational efficiency, and environmental stewardship

Recommendations:

• Download and review ISO 6319:2026 in detail
• Update BFMPs, BFRBs and operational manuals as needed
• Provide training, conduct compatibility assessments, and engage with ports/regulators
• Stay informed about related standard updates and ensure ongoing compliance

Ready to safeguard your marine operations and protect our waters?

Browse the full standard and stay ahead with iTeh Standards’ expert publications and updates. View ISO 6319:2026 on iTeh Standards