MTG methanol-to-gasoline (process)
MY model year
NAAQS National Ambient Air Quality Standards
NAE National Academy of Engineering
NAS National Academy of Sciences
NASA National Aeronautics and Space Administration
NBB National Biodiesel Board
NEMS National Energy Modeling System
NER net energy ratio
NETL National Energy Technology Laboratory
NEV net energy value
NG natural gas
NGV natural gas vehicle
NHTSA National Highway Traffic Safety Administration
Ni-MH nickel metal-hydride
NIST National Institute of Standards and Technology
NLTS nineteen lower-tier state region
NMC nickel-manganese-cobalt oxide
NOx mono-nitrogen oxides, including nitric oxide (NO) and nitrogen dioxide (NO2)
NRC National Research Council
NRCS Natural Resources Conservation Service
NREL National Renewable Energy Laboratory
OBP Office of Biomass Program
OEM original equipment manufacturer
OMEGA Offshore Membrane Enclosure for Growing Algae
ORNL Oak Ridge National Laboratory
OSHA Occupational Safety and Health Administration
OTAG Ozone Transport Assessment Group
PAYD pay as you drive
PBR photobioreactor
PEM proton-exchange membrane
PEV plug-in electric vehicle
PG&E Pacific Gas and Electric
PHEV plug-in hybrid electric vehicle


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