Nail Salons
Narrow Fabric Mills
Natural Gas Liquid Extraction
New Housing Operative Builders
New Multifamily Housing Construction (except Operative Builders)
New Single-Family Housing Construction (except Operative Builders)
Newspaper Publishers
Nitrogenous Fertilizer Manufacturing
Noncellulosic Organic Fiber Manufacturing
Nonchocolate Confectionery Manufacturing
Nonclay Refractory Manufacturing
Nonferrous (except Aluminum) Die-Casting Foundries
Nonferrous Forging
Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding
NONMETALLIC MINERAL MINING AND QUARRYING
NONMETALLIC MINERAL PRODUCT MANUFACTURING
Nonupholstered Wood Household Furniture Manufacturing
Nonwoven Fabric Mills
Nuclear Electric Power Generation
Nursery and Tree Production