Index entry	NAICS Code	U.S. NAICS Title
Old age homes without nursing care	623312	Homes for the Elderly
Old age survivors and disability programs	923130	Administration of Human Resource Programs (except Education, Public Health, and Veterans' Affairs Programs)
Old soldiers' homes without nursing care	623312	Homes for the Elderly
Olefin fibers and filaments manufacturing	325222	Noncellulosic Organic Fiber Manufacturing
Olefins made from refined petroleum or liquid hydrocarbons	325110	Petrochemical Manufacturing
Oleic acid (i.e., red oil) manufacturing	325199	All Other Basic Organic Chemical Manufacturing
Oleic acid esters manufacturing	325199	All Other Basic Organic Chemical Manufacturing
Oleum (i.e., fuming sulfuric acid) manufacturing	325188	All Other Basic Inorganic Chemical Manufacturing
Olive farming	111339	Other Noncitrus Fruit Farming
Olive oil made from purchased oils	311225	Fats and Oils Refining and Blending
Olive oil made in crushing mills	311223	Other Oilseed Processing
Olives brined	311421	Fruit and Vegetable Canning
Olives, dried, made in dehydration plant	311423	Dried and Dehydrated Food Manufacturing
Olivine, non-gem, mining and/or beneficiating	212325	Clay and Ceramic and Refractory Minerals Mining

Page Last Modified: September 19, 2000