Nov 20 (Reuters) - The table below outlines industry terms for distillate and residual marine fuels categorised by sulphur content and their permissible uses under global International Maritime Organization (IMO) rules and stricter Emission Control Areas (ECAs)requirements. From Jan. 1, 2020, IMO rules prohibit ships from using fuels containing more than 0.5% sulphur, compared with 3.5% currently, unless they are equipped with exhaust-cleaning "scrubbers". ECAs, set by individual port states, limit sulphur emissions to 0.1%. Sulphur content Reference Residual Marine Distillate Marine Gas Application Fuel Oil (RM) Oil / Diesel Oil (DM) S ≤ 0.1% Ultra Low ULSFO (RM) ULSFO (DM) ECA zone, IMO 2020 Sulphur (ULS) compliant 0.1% < S ≤ 0.5% Very Low VLSFO (RM) VLSFO (DM) IMO 2020 compliant Sulphur (VLS) 0.5% < S ≤ 1% Low Sulphur LSFO (RM) LSFO (DM) Ships with scrubbers, (LS) blendstock S > 1% High Sulphur HSFO (RM) HSFO (DM) Ships with scrubbers, (HS) blendstock Sources: International Maritime Organization, industry sources (Reporting by Roslan Khasawneh; Editing by Tom Hogue)