Subject of Investigation

	Natural Resources and Their Products
	Plants and Their Products
	Animals, Including Invertebrates, and Their Products
	Microorganisms
	Food and Manufactured Resources
	Human Resources, Organizations, and Institutions
	Other Technologies

Natural Resources and Their Products

• Soil and Land
• Water
• Watersheds and River Basins
• Atmosphere
• Recreational Resources
• Trees, Forests, and Forest Products (excluding edible tree nut crops)
• Rangelands and Grasslands
• Wildlife and Natural Fisheries Management, Endangered Species

• Citrus
• Tropical/Subtropical Fruit
• Deciduous and Small Fruits
• Edible Tree Nuts
• Potato
• Vegetables
• Grain Crops
• Pasture and Forage Crops
• Fiber Crops
• Oilseed and Oil Crops
• Tobacco
• Sugar Crops
• Ornamentals and Turf
• Miscellaneous and New Crops
• Weeds
• Plants

• Bees, Honey, and Other Pollinators
• Invertebrates
• Poultry
• Beef Cattle
• Dairy Cattle
• Swine
• Sheep and Wool
• Cultured Aquatic Animals
• Other Animals
• Animals

Food and Manufactured Resources

• Food (not readily associated with specific plant and animal products)
• Clothing and Textiles
• Agricultural Supplies
• Structures, Facilities, and Equipment

• People and Communities
• Economy
• Marketing

• Biological Cell Systems
• Research on Research Management (not research management per se)
• Research Equipment and Methods
• Experimental Design and Statistical Methods
• General Technology

Natural Resources and Their Products
	Code	Subject
	Soil and Land
	0110	Soil
	0120	Land
	0199	Soil and land, general
	Water
	0210	Water resources
	Watersheds and River Basins
	0310	River basins
	0320	Watersheds
	0330	Wetland and riparian systems
	0399	Watersheds and river basins, general
	Atmosphere
	0410	Air
	0420	Weather
	0430	Climate
	0440	Solar radiation
	0499	Atmosphere, general/other
	Recreational Resources
	0510	Wilderness
	0520	Campgrounds and picnic areas
	0530	Parks and urban green space
	0599	Recreational resources, general/other
	Trees, Forests, and Forest Products (excluding edible tree nut crops)
	0610	Conifer forests of the North
	0611	Conifer forests of the South
	0612	Conifer forests of the West
	0613	Mixed conifer-broadleaf forests
	0620	Broadleaf forests of the North
	0621	Broadleaf forests of the South
	0622	Broadleaf forests of the West
	0630	Chaparral and shrub lands
	0640	Tropical forests
	0650	Wood and wood products
	0660	Paper and pulp derived products
	0670	Short rotation woody crops, including holiday trees
	0680	Other products of the forest
	0699	Trees, forests, and forest products, general
	Rangelands and Grasslands
	0710	Desert and semidesert shrub land and shinnery
	0720	Pinyon-juniper
	0730	Mountain grasslands, meadow, and alpine
	0780	Grasslands, other
	0790	Rangelands, other
	0799	Rangelands and grasslands, general
	Wildlife and Natural Fisheries Management, Endangered Species
	0810	Finfish
	0811	Shellfish
	0812	Fish habitats
	0819	Natural fisheries, other
	0820	Wild birds
	0830	Wild animals
	0840	Fur-bearing animals
	0850	Wildlife habitats
	0860	Endangered species
	0899	Wildlife and natural fisheries, general/other
Plants and Their Products
	Code	Subject
	Citrus
	0910	Grapefruit
	0920	Orange
	0930	Lemon
	0999	Citrus, general/other
	Tropical/Subtropical Fruit
	1010	Banana
	1020	Pineapple
	1030	Papaya
	1040	Mango
	1050	Date
	1060	Kiwi
	1099	Tropical/subtropical fruit, general/other
	Deciduous and Small Fruits
	1110	Apple
	1111	Apricot
	1112	Cherry
	1113	Nectarine
	1114	Peach
	1115	Pear
	1116	Plum
	1119	Deciduous tree fruits, other
	1120	Blueberry
	1121	Cranberry
	1122	Strawberry
	1123	Raspberry
	1129	Berries and cane fruits, other
	1130	Table grapes
	1131	Wine grapes
	1132	Raisin grapes
	1139	Grapes, other
	1199	Deciduous and small fruits, general/other
	Edible Tree Nuts
	1210	Filbert
	1211	Pecan
	1212	Almond
	1213	Walnut
	1219	Edible tree nuts, general/other
	1310	Potato
	Vegetables
	1410	Beans (dry)
	1411	Beans (fresh, fresh-processed)
	1412	Peas (dry)
	1413	Peas (fresh, fresh-processed)
	1414	Lentil
	1419	Leguminous vegetables, other
	1420	Melons (includes cantaloupe, muskmelon, watermelon)
	1421	Cucumber
	1429	Cucurbits, other (includes pumpkin, squash, gourd)
	1430	Greens and leafy vegetables (includes endive, lettuce, spinach, turnip-greens, celery, rhubarb, parsley, asparagus)
	1440	Cole crops (includes cabbage, kale, broccoli, brussels sprouts, cauliflower, kohlrabi)
	1450	Sweet potato
	1451	Onion, garlic, leek, shallot
	1452	Carrot
	1453	Yam
	1454	Taro
	1455	Cassava (or manioc)
	1459	Rhizomes, tubers, bulbs, and root crops, general/other (for potato use 1310)
	1460	Tomato
	1461	Peppers
	1462	Eggplant
	1469	Solanaceous and related crops, general/other (for potato use 1310)
	1470	Mushrooms and other edible fungi
	1480	Sweetcorn
	1499	Vegetables, general/other
	Grain Crops
	1510	Corn (for sweetcorn use 1480)
	1511	Popcorn
	1520	Grain sorghum
	1530	Rice
	1540	Hard red winter wheat
	1541	Hard red spring wheat
	1542	Soft red wheat
	1543	Soft white wheat (includes club, western)
	1544	Hard white wheat
	1545	Durum wheat
	1549	Wheat, other
	1550	Barley
	1560	Oats
	1570	Rye
	1599	Grain crops, general/other (includes buckwheat, millet, triticale)
	Pasture and Forage Crops
	1610	Pasture
	1620	Warm season perennial grasses (includes dallisgrass, bluestems, bermudagrass)
	1621	Cool season perennial grasses (includes bluegrass, bromegrass, fescue, orchardgrass, perennial ryegrass, timothy, wheatgrass)
	1629	Perennial grasses, other
	1630	Summer annual grasses (includes forage sorghums, sudangrass, sorghum-sudangrass hybrids)
	1631	Winter annual grasses (includes annual ryegrass)
	1639	Annual grasses, other
	1640	Alfalfa
	1641	Trefoil
	1642	Red clover
	1643	Crownvetch
	1644	Winter annual legumes (includes subterranean clover, arrowleaf clover)
	1649	Forage legumes, other
	1699	Pasture and forage crops, general/other
	Fiber Crops
	1710	Upland cotton
	1711	Long fiber cotton
	1719	Cotton, other
	1720	Kenaf
	1730	Hemp
	1740	Ramie
	1750	Agave
	1799	Fiber crops, general/other
	Oilseed and Oil Crops
	1810	Cottonseed (for meal, oil, etc.)
	1820	Soybean
	1830	Peanut
	1840	Castor
	1841	Crambe
	1842	Flax
	1843	Safflower
	1844	Sunflower
	1845	Jojoba
	1846	Coconut
	1847	Palm
	1848	Canola
	1849	Cuphea
	1850	Lesquerella
	1851	Meadowfoam
	1852	Rape
	1853	Sesame
	1854	Chinese tallow
	1855	Tung
	1899	Oilseed and oil crops, general/other
	Tobacco
	1910	Flue-cured tobacco
	1920	Burley tobacco
	1930	Cigar-type tobacco
	1999	Tobacco, general/other
	Sugar Crops
	2010	Sugar beet
	2020	Sugar cane
	2030	Sweet sorghum
	2099	Sugar crops, general/other
	Ornamentals and Turf
	2110	Ornamental trees and shrubs
	2120	Herbaceous perennials and decorative greens
	2121	Cut flowers, foliage, and greens
	2122	Potted plants
	2123	Bedding/garden plants
	2129	Florist crops, other
	2130	Turf (includes bentgrass, bermudagrass, bluegrass, dichondra, fescue, ryegrass, zoysia)
	2140	Ground covers
	2150	Aquatic plants
	2160	Arboreta and botanical gardens
	2199	Ornamentals and turf, general/other (includes cacti)
	Miscellaneous and New Crops
	2210	Chemurgic crops
	2220	Medicinal crops, non-narcotic
	2221	Narcotic plants
	2230	Hops
	2231	Mint
	2232	Coffee
	2233	Cocoa
	2234	Tea
	2235	Herbs and spices
	2239	Flavoring and beverage plants, other
	2240	Guayule
	2241	Hevea
	2242	Gums
	2249	Rubber, gum, and resin plants, other
	2299	Miscellaneous and new crops, general/other
	2300	Weeds
	Plants
	2410	Cross-commodity research--multiple crops
	2420	Noncrop plant research
	2499	Plant research, general
Animals, Including Invertebrates, and Their Products
	Code	Subject
	Bees, Honey, and Other Pollinators
	3010	Honey bees
	3020	Honey and honey products
	3030	Non-honey apiary products
	3090	Other Pollinators
	3099	Bees, honey, and other pollinators, general
	Invertebrates
	3110	Insects
	3120	Spiders, mites, ticks, and other arthropods
	3130	Nematodes
	3199	Invertebrates, general/other
	Poultry
	3210	Egg-type chicken, live animal
	3220	Meat-type chicken, live animal
	3230	Turkey, live animal
	3240	Duck and goose, live animal
	3250	Ratites (e.g., ostrich, emu, rhea), live animal
	3260	Poultry meat
	3270	Eggs
	3280	Other poultry products
	3299	Poultry, general/other
	Beef Cattle
	3310	Beef cattle, live animal
	3320	Meat, beef cattle
	3330	Other beef cattle products
	3399	Beef cattle, general/other
	Dairy Cattle
	3410	Dairy cattle, live animal
	3420	Butter
	3430	Cheese
	3440	Meat, dairy cattle
	3450	Milk
	3460	Ice cream
	3470	Other dairy cattle products
	3499	Dairy cattle, general/other
	Swine
	3510	Swine, live animal
	3520	Meat, swine
	3530	Other swine products
	3599	Swine, general/other
	Sheep and Wool
	3610	Sheep, live animal
	3620	Meat, sheep
	3630	Wool fiber
	3699	Sheep and wool, general/other
	Cultured Aquatic Animals
	3710	Catfish
	3711	Trout
	3712	Salmon
	3713	Striped bass
	3714	Tilapia
	3715	Baitfish (minnows and shiners)
	3716	Ornamental finfish
	3719	Other cultured finfish
	3720	Crawfish
	3721	Marine shrimp
	3722	Freshwater shrimp
	3723	Oysters
	3724	Clams and mussels
	3725	Ornamental shellfish
	3729	Other cultured shellfish
	3799	Cultured aquatic animals, general/other
	Other Animals
	3810	Horses, ponies, and mules
	3820	Goats, meat and mohair
	3830	Pets (companion animals)
	3840	Laboratory animals
	3899	Other animals, general
	Animals
	3910	Cross-commodity research--multiple animal species
	3999	Animal research, general
Microorganisms
	Code	Subject
	4010	Bacteria
	4020	Fungi (includes yeast)
	4030	Viruses
	4040	Viroids, mycoplasmas, spiroplasmas, etc.
	4050	Protozoa
	4099	Microorganisms, general/other
Food and Manufactured Resources
	Code	Subject
	5010	Food (not readily associated with specific plant and animal products)
	Clothing and Textiles
	5110	Clothing/apparel
	5120	Textiles
	5199	Clothing and textiles, general
	Agricultural Supplies
	5210	Fertilizers
	5220	Pesticides (includes herbicides, insecticides, fungicides, etc.)
	5230	Feed and feed additives
	5240	Seeds and other plant propagules
	5299	Agricultural supplies, general/other
	Structures, Facilities, and Equipment
	5310	Machinery and equipment
	5320	Houses (human residences), furniture, household equipment, non-textile furnishings
	5330	Farm structures and related facilities
	5340	Nonfarm structures and related facilities, including those used in marketing, storing, processing, and distributing functions, and for recreational uses
	5350	Domestic and community water supply facilities and systems
	5360	Drainage and irrigation facilities and systems
	5370	Sewage and waste disposal facilities and systems
	5399	Structures, facilities, and equipment, general/other
Human Resources, Organizations, and Institutions
	Code	Subject
	People and Communities
	6010	Individuals (as workers, consumers, members of society)
	6020	The family and its members
	6030	The farm as an enterprise
	6040	Real estate
	6050	Communities, areas, and regions, including states and their institutions and organizations
	6099	People and communities, general/other
	Economy
	6110	Economy of the United States and sectors thereof
	6120	International economy and sectors thereof
	6199	Economy, general/other
	Marketing
	6210	Farmer cooperatives
	6220	Marketing, processing, and supply firms other than cooperatives
	6230	Marketing systems and sectors thereof
	6299	Marketing, general/other
Other Technologies (Use the following classifications only if the research is not targeted at one or more previously listed specific commodities/products or resources)
	Code	Subject
	7010	Biological Cell Systems
	7110	Research on research management (not research management per se)
	Research Equipment and Methods
	7210	Remote sensing equipment and technology
	7220	Sensory evaluation/analysis methods (human senses)
	7299	Research equipment and methods, general/other
	7310	Experimental design and statistical methods
	7410	General technology