NCL Stewardship Report 2018 - 31

GLOSSARY	OF	TERMS
ADVANCED WASTEWATER PURIFICATION
SYSTEM (AWPS):	A	biological	treatment	plant	
on	board	the	vessel	that	treats	the	wastewater	
generated	on	board	to	internationally	established	
standards.

EU MONITORING, REPORTING & VERIFICATION
(MRV): The	European	Union	(EU)	introduced	the	
shipping	monitoring,	reporting	and	verification	
(MRV)	regulation,	which	is	designed	to	gather	data	
on	CO2	emissions	based	on	ships'	fuel	consumption.

APPROVED CHEMICAL LIST: Company-specific	list	
of	chemicals	that	have	been	approved	for	use	on	
board	by	the	shoreside	office.

EVAPORATORS: Evaporators	produce	fresh	water	
from	seawater	utilizing	heat	sources	such	as	the	
Exhaust	Gas	Boilers,	Oil	Fired	Boilers,	or	Waste	Heat	
recovered	from	the	main	engine	high-temperature	
cooling	system.

BALLAST WATER: Fresh	or	seawater	stored	in	a	
vessel's	tanks	to	improve	ship	stability.
BALLAST WATER TREATMENT SYSTEM (BWTS):
System	installed	on	board	a	vessel	to	treat	ballast	
water	in	order	to	prevent	the	spread	of	non-native	
aquatic	species.
BALTIC DISCHARGE STANDARDS:	MARPOL	Annex	
IV	recognizes	the	Baltic	Sea	as	a	special	area	and	
prohibits	the	discharge	of	sewage	effluent	from	
passenger	ships	operating	in	special	areas,	unless	a	
passenger	ship	has	in	operation	an	approved	sewage	
treatment	plant	implementing	effluent	standards	and	
performance	tests	defined	in	the	2012	Guidelines	
on	implementation	of	effluent	standards	and	
performance	tests	for	sewage	treatment	plants.	
BERTHS:	Double	Occupancy	per	cabin	(single	
occupancy	per	studio	cabin)	even	though	many	
cabins	can	accommodate	three	or	more	passengers.
BILGE WATER:	Oily	wastewater	collected	in	
machinery	and	engine	spaces.
BUNKERING: To	provide	fuel	or	water	for	a	vessel.
CAPACITY DAYS: Available	berths	multiplied	by	the	
number	of	cruise	days	for	the	period.	
COLD-IRONING: The	process	of	providing	shoreside	
electrical	power	to	a	ship	at	berth	while	its	main	
and	auxiliary	engines	are	turned	off;	also	known	as	
Alternative	Marine	Power	and	Shore	Power.
DRY DOCK: A	structure	able	to	contain	a	ship	and	
to	be	drained	or	lifted	to	leave	the	ship	free	of	
water	with	all	parts	of	the	hull	accessible	for	repairs,	
painting,	etc.
ELKHORN CORAL: Acropora palmata,	a	reef-building	
branching	coral	of	shallow	waters	of	southern	Florida	
and	the	West	Indies.	

EXHAUST GAS CLEANING SYSTEM (EGCS): A	
system	that	reduces	the	amount	of	sulfur	oxide	
and	particulate	matter	emitted	from	the	vessel	by	
cleaning,	or	scrubbing,	the	fuel	before	the	emissions	
are	released	from	the	stack.
HAZARDOUS WASTE: Any	waste	material	that	is	
corrosive,	flammable,	toxic	or	reacts	with	other	
materials.	
INTERNATIONAL CONVENTION FOR THE
CONTROL AND MANAGEMENT OF SHIPS' BALLAST
WATER AND SEDIMENT: Also	known	as	the	Ballast	
Water	Convention,	adopted	in	2004,	this	IMO	
convention	establishes	procedures	for	management	
of	ships'	ballast	and	ballasting	operations,	in	order	to	
limit	the	spread	of	non-native	aquatic	organisms.
INTERNATIONAL MARITIME ORGANIZATION (IMO):
The	agency	of	the	United	Nations	responsible	for	
regulating	shipping.
ISO 14001 STANDARD: A	standard	under	the	
International	Organization	for	Standardization	
(ISO)	which	establishes	criteria	for	a	company's	
Environmental	Management	System	(EMS)	
which	maps	out	a	framework	that	a	company	or	
organization	can	follow.
MARPOL:	International	Convention	of	the	Prevention	
of	Pollution	from	Ships.	An	international	convention		
regulating	the	disposal	of	bilge	water,	garbage,	
sewage	and	hazardous	materials	from	ships	and	the	
emissions	generated	from	marine	engines.	

OILY WATER SEPARATOR (OWS): Piece	of	
equipment	on	board	a	vessel	that	separates	oil	and	
water	mixtures	into	separate	components.	
PARTICULATE MATTER (PM): Mixture	of	organic	and	
inorganic	particles	that	may	be	emitted	from	a	vessel	
due	to	the	burning	of	fuel.	
PASSENGER CRUISE DAYS:	The	number	of	
passengers	carried	for	the	period	multiplied	by	the	
number	of	days	in	their	respective	cruises.
PERSONAL PROTECTIVE EQUIPMENT (PPE):	
Respiratory	protection,	protective	clothing	or	other	
safety	equipment	that	ensures	the	safe	handling	of	a	
chemical.	
REVERSE OSMOSIS PLANTS: Plants	that	produce	
fresh	and	technical	water	from	seawater	by	utilizing	
high-pressure	pumps	and	sophisticated	water	filters	
and	dosing	(or	treatment)	components.
SHIPBOARD ENERGY EFFICIENCY MANAGEMENT
PLAN (SEEMP):	Vessel-specific	document	and	
management	tool	that	outlines	measures	that	can	be	
implemented	on	board	to	improve	efficiency.
SOLID WASTE: Solid	waste	consists	of	aluminum	and	
tin	cans,	glass	bottles,	cardboard,	office	paper,	food	
preparation	and	table	scraps,	plastic	bottles	and	
containers,	packaging,	expired	light	bulbs,	paints	and	
chemicals,	refurbishment	debris	and	medical	waste.
STAGHORN CORAL: Acropora cervicornis,	a	
branching,	stony	coral	with	cylindrical	branches	
ranging	from	a	few	centimeters	to	over	two	meters	in	
length	and	height.	
SULFUR OXIDE (SOX):	Vessel-related	emissions	as	a	
result	of	fuel	use;	any	of	several	oxides	of	sulfur.
VESSEL SANITATION PROGRAM (VSP): Program	
with	the	Centers	for	Disease	Control	and	Prevention	
(CDC)	that	assists	the	cruise	ship	industry	to	
prevent	and	control	the	introduction,	transmission	
and	spread	of	gastrointestinal	(GI)	illnesses	on	
cruise	ships.

OIL CONTENT METER: Part	of	the	oily	water	
separator	system	on	board	a	vessel	that	continuously	
monitors	how	much	oil	is	in	the	water.	

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NCL Stewardship Report 2018

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