TVIB News Subchapter M Updates

TVIB FAQ – From Paper to Digital: NVIC 01-16 CH-3 – Chart & Publication Carriage Equivalencies for Inland Towing Vessels 

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What must mariners know about NVIC 01-16 (Change 3): Equivalency Determination for Chart and Publication Carriage Requirements?

In this FAQ, TVIB explains the equivalency options provided under NVIC 01-16 (Change 3) for meeting chart and publication carriage requirements.

This FAQ also consolidates the key requirements and clarifications that are not directly outlined in Subchapter M.

Take a few minutes to review the full FAQ to ensure your vessels remain in compliance with current Coast Guard guidance.

Find Detailed Guidance in Our FAQ
For comprehensive answers and guidance, visit the FAQ section on our website: TVIB FAQ. Use the search function with the term “NVIC 01-16” or navigate to 46 CFR Part 140 for chart and publication carriage requirements.

TVIB FAQ – Signage requirements for a CO2 fixed fire-extinguishing system

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What are the signage requirements for a CO2 fixed fire-extinguishing system?

In this FAQ, TVIB provides the signage requirements for CO2 fixed fire-extinguishing systems.

This FAQ also centralizes the applicable citations and requirements that are not directly found within Subchapter M.

Take a few minutes to review the full FAQ to ensure your vessels meet all compliance expectations. 

Find Detailed Guidance in Our FAQ
For comprehensive answers and guidance visit the FAQ section on our website: TVIB FAQ. Use the search function with the term “signage” or navigate to 46 CFR Part 142 for relevant details. 

USCG: REVISIONS to NVIC 01-89 Change 1 Underwater Survey Guidance – UWILD Considerations

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Review of the Updated UWILD Policy

The updated UWILD policy has no direct impact on the brown water fleet. It emphasizes the importance of visibility during underwater surveys conducted by divers or remotely operated vehicles (ROVs).

Brown water operations—typically conducted in inland and coastal waterways such as rivers, canals, and bays—often involve confined waters and limited visibility. These conditions make it difficult to meet the policy’s visibility requirements, which state:

  • Water clarity must be sufficient for the diver or ROV to view the full height of the propeller and rudder in a single frame.

If this level of clarity cannot be achieved, operators must consider alternatives such as relocating the vessel, waiting for improved conditions, or drydocking.

Other key updates:

  • Expanded Eligibility:Vessels over 15 years old may qualify for UWILD with certain conditions and CG-CVC endorsement.
  • Third-Party Oversight:Unclassed ITVs operating under a TSMS can use their TPO to verify UWILDs without mandatory Coast Guard presence. Simplified documentation applies, and both the TPO and OCMI must be notified.
  • Harmonization:DD/ISE dates may now align with Load Line (LL) inspections for unclassed vessels.
  • Technology Use:ROVs equipped with advanced cameras and lighting may improve visibility in marginal conditions.

All other UWILD policy requirements remain unchanged.