Criteria for Sorting Impacts as Major or Minor

Impacts are measured in comparison to the baseline of industry practice in the absence of PVAG.

1. What is the impact?
   • Are features added to ship that would not otherwise be provided (e.g., visual alarms)?
   • Are features required in greater number than would otherwise be provided (e.g., accessible guest rooms, assistive listening systems)?
   • Do required features reduce space used for other purposes (e.g., wheelchair spaces in assembly areas)?
   • Do required features present design challenges?
   • Other?
2. Is it feasible to estimate a unit cost for the impact?
3.  Major impacts:
   • Unit costs exceed certain value
   • Increases total construction cost by certain percent
   • Present difficult or significant design challenges
   • Other?
4. Minor impacts:
   • Minimal cost
   • Can be easily accommodated in vessel design
   • Other?