SOLAS-coded rescue tenders carry a regulatory load that does not apply to normal tenders. The annual inspection cycle, the five-year major refit, and the equipment-renewal schedule add real cost and real downtime to the asset. This page covers what compliance actually involves so the cost is in the build budget from day one rather than as an unwelcome surprise in year two.
What "SOLAS-coded" certifies
The certification covers three strands: how the boat is built, what it carries, and how often it is inspected. Each strand has standards behind it.
Construction standard
The hull is built to a survival-craft specification with mandatory features:
- Sealed buoyancy compartments sized to keep the boat afloat with the engine bay flooded
- Fire-retardant materials for hull, deck, and trim
- Self-righting mechanism on hulls above 6m on most flag states (some allow exceptions below 8m)
- Certified lifting points sized to the davit class on the mothership, with documented load testing
- Documented launching sea-state envelope, typically Beaufort 4 minimum
The build standard adds 15 to 25 percent to the unit cost compared to an equivalent non-coded RIB or rescue tender of the same size.
Equipment fit
Mandatory inventory, sealed in deck stowage:
- SART (search and rescue transponder)
- EPIRB (emergency position-indicating radio beacon)
- Pyrotechnic distress kit (parachute flares, hand flares, smoke signals)
- Emergency rations (sealed bricks, calorie-counted by capacity)
- First-aid kit to the flag-state specification
- Signal flares, paddles, sea anchor, towing line
- Bilge pump (manual, in addition to engine-driven)
The equipment package is renewed on a 3 to 5 year cycle depending on the item; pyrotechnics expire fastest.
Coding and inspection
Three cycles run in parallel:
- Annual inspection. Flag-state surveyor confirms the boat is still in coded condition: structure, equipment, lifting points, engine readiness. Half-day exercise. Cost EUR 3,000 to 6,000 depending on flag.
- Five-year major refit. Full strip-down: hull integrity, sealing, lifting-point recertification with load test, equipment renewal. Yard time 2 to 4 weeks. Cost EUR 30,000 to 80,000 depending on size and condition.
- Equipment renewal. Rolling 3 to 5 year cycle on consumables. Cost EUR 5,000 to 15,000 per cycle.
When SOLAS coding is required
The rule of thumb: any commercial yacht above 500 GT carries SOLAS lifesaving requirements that include a rescue tender. "Commercial" means MCA Large Yacht Code, MCA Passenger Yacht Code, or any equivalent flag-state commercial registration that permits charter or paid passenger carriage.
Privately-registered yachts below 500 GT are not required to carry coded tenders, but many do for two reasons:
- Future flexibility. Adding SOLAS coding to an existing non-coded tender is hard; specifying it from build is meaningfully cheaper.
- Flag-state preference. Cayman REG, Marshall Islands, and Malta privately-registered yachts often require coded craft above certain size thresholds even on private registration. The rule varies; check with the flag-state surveyor.
What it costs to stay compliant
Annual run-rate budget for a 5 to 7m SOLAS rescue tender on a commercial yacht:
- Annual surveyor inspection: EUR 3,000 to 6,000
- Equipment renewals (rolling): EUR 1,500 to 3,000 averaged
- Routine maintenance (engine, fuel system, electrical): EUR 5,000 to 10,000
- Storage and contingency: EUR 1,000 to 2,000
Total annual: EUR 10,500 to 21,000 above standard tender maintenance.
Plus the five-year refit at EUR 30,000 to 80,000 (amortise to EUR 6,000 to 16,000 annually).
Realistic all-in annual cost: EUR 16,000 to 37,000.
Where coding is sometimes voluntary
Three scenarios push private yachts toward voluntary coding:
- Charter optionality. Owner intends to take the yacht into charter at a future date. Coding from build is a fraction of the cost of retrofitting.
- Crew safety culture. Some owners and management companies treat SOLAS coding as a baseline regardless of regulatory requirement.
- Flag-state requirement. As above, some flags require coded craft on private registration above certain GT thresholds.
Voluntary coding usually adds EUR 80,000 to 200,000 to the build budget for a small RIB, and EUR 200,000 to 500,000 for a larger dual-purpose rescue tender.