What are the regulations for organic milk production?
In the US, organic milk must come from animals on a farm certified under the USDA National Organic Program. The cows eat a fully organic ration, may not be given growth-promoting drugs or hormones, must have year-round outdoor access, and must get at least 30 percent of their dry matter intake from grazing during the grazing season for their region.
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What makes milk organic in the US?
Organic milk comes from dairy animals raised on a farm that is certified under the USDA National Organic Program. The rules are written in 7 CFR Part 205. The milk is then handled by a certified processor, so the organic claim covers both the farm and the plant. Other countries have their own organic rules, so this page covers the US standard.
What do organic dairy cows eat?
The total ration must be made of organically produced and handled feed from certified operations, including pasture and forage. The rules also ban several practices:
- Animal drugs, including hormones, to promote growth.
- Feed that contains antibiotics, including ionophores.
- Urea and manure in feed formulas, and plastic pellets as roughage.
- Slaughter by-products fed to mammals or poultry.
How much grazing is required?
Ruminants must have pasture through the grazing season for the farm’s region. Dairy animals must get an average of at least 30 percent of their dry matter intake from grazing during that season. Producers must also schedule milking so that milking itself is not used to deny cows their pasture. The length of the grazing season depends on the region and is set out in each farm’s organic system plan.
What about housing and outdoor access?
The rules require year-round access to the outdoors for all animals. Continuous total confinement indoors is prohibited, and so is continuous total confinement of ruminants in yards, feeding pads or feedlots.
How is it checked?
Organic farms are certified under the National Organic Program. Look for the USDA Organic seal on the carton.
Is organic milk different to drink?
The rules cover how the cows are raised and fed, not the nutrition of the finished milk, and we did not find an official statement that organic milk is more nutritious. It often costs more in the store. Organic milk is not exempt from food safety steps such as pasteurization.
This is general information. Check the current rules at the USDA before relying on them for certification.
People also ask
How much grazing do organic dairy cows need?
Under the USDA rules, dairy animals must get an average of at least 30 percent of their dry matter intake from grazing during the grazing season for their region.
Can organic cows be fed growth hormones?
No. USDA organic rules prohibit animal drugs, including hormones, used to promote growth, and feed that contains antibiotics.
Does organic milk have to be pasteurized?
The organic rules are about how animals are raised and fed. Pasteurization is a separate food safety step, and most milk sold in stores is pasteurized.
Sources
- Cornell Law School Legal Information Institute: 7 CFR 205.237 Livestock feed, read 6 Nov 2026
- Cornell Law School Legal Information Institute: 7 CFR 205.239 Livestock living conditions, read 6 Nov 2026
- Cornell Law School Legal Information Institute: 7 CFR 205.240 Pasture practice standard, read 6 Nov 2026
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