NCDT
New Category Development Team
NCWM
National Conference on Weights and Measures
NEDC
New European Driving Cycle
NESCAUM
North East States for Co-ordinated Air Use Management
NGEO
Natural Gas Engine Oil
NGLI
National Lubricating Grease Institute (USA)
NGO
Non-Governmental Organisation
NGVA
Natural Gas Vehicle Association
NHTSA
National Highway Traffic Safety Administration
NMMA
National Marine Manufacturers Association
NMOG
Non-Methane Organic Gases
NOACK
Apparatus/Method for Volatility Measurement
NOx
Nitrous Oxides
NREL
National Renewable Energy Laboratory
NSF
NSF International – public health and safety organisation
NSPA
NATO’s Integrated Logistics and Services Provider Agency