Superyacht Green Mandate NOx Tier III Compliance Receive Five-Year Deferral: If you’re planning to build a megayacht whose keel will be laid this January or later, your naval architect and building just gained to ensure compliance with a new regulatory standard covering nitrogen oxide (NOx) emissions. Tier III compliance will apply to some superyachts starting in January 2021 instead of next month.
Tier III rules, adopted by the International Maritime Organization (IMO) last year, requires NOx emissions to be about 80 percent lower than what they are now. The rule applies to all types of vessels, not just yachts, whose keels are being laid as of January 1. The yachting industry, however, gained a five-year deferral for Tier III compliance for yachts measuring 79 feet and larger and are less than 500 gross tons. Most yachts that fall into this category measure less than 131 feet.
ICOMIA (International Council of Marine Industry Associations) and the Mediterranean Yacht Brokers Association (MYBA) lobbied the IMO for more time due to discoveries from three ICOMIA-commissioned studies that evaluated design, technical, and socio-economic issues. ICOMIA learned that data showing exhaust-treatment units require a larger footprint than what current engine-room parameters permit. Although space could be taken from guest accommodations, that would be impractical. As MYBA indicated Tier III emissions regulation had the potential to make an entire category of yachts commercially unviable.
The five-year deferral should give equipment manufacturers and naval architects enough time to explore and adopt suitable solutions. Megayachts measuring more than 79 feet and exceeding 500 gross tons must still comply with Tier III come January.
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