The document discusses new regulations from the International Maritime Organization that will lower the maximum sulfur content allowed in marine fuel from 1.0% to 0.1% for vessels operating within designated Emission Control Areas beginning in January 2015. This will significantly increase demand for lower sulfur marine gas oil and likely increase fuel prices initially for both commercial ships and superyachts. The regulations are part of an ongoing effort to improve air quality by reducing sulfur oxide and particulate emissions. Additional reductions in sulfur content limits outside of Emission Control Areas are also planned. The changes may present challenges for fuel supply and increased risk of microbial contamination requiring preventative maintenance and testing.