Within a TSS, which exemptions allow work to proceed?

• A. No exemptions exist
• B. Only Rule 10 J exemption
• C. Rule 10 K or J exemptions
• D. Only Rule 10 K exemption

Answer: (C)

Within a Traffic Separation Scheme, essential work can proceed because Rule 10 includes exemptions that allow certain operations to continue without forcing ships performing the work to fully conform to every traffic rule. The exemptions commonly referenced as Rule 10 J and Rule 10 K cover vessels engaged in activities like dredging, cable laying, surveying, or similar work within or near the TSS. These exemptions exist precisely to enable necessary work to happen while still maintaining overall safety; the vessel conducting the work must follow the safety conditions attached to the exemption—such as not unduly impeding traffic, using proper signals and lights, and maintaining a safe speed and course to avoid conflicts with other vessels.

So, work can proceed under either of these exemptions when the operation qualifies, which is why the correct understanding is that both Rule 10 J and Rule 10 K exemptions apply. The other options miss the existence of these exemptions or restrict it to only one, which doesn’t align with how the rules are written to support essential operations in a TSS.