7 CFR 205.602
§ 205.602 Nonsynthetic substances prohibited for use in organic crop production.
United States · 7 CFR — Agriculture · Status: effective
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- Citation
- 7 CFR 205.602, § 205.602 Nonsynthetic substances prohibited for use in organic crop production, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/17251
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Full text
The following nonsynthetic substances may not be used in organic crop production:
(a) Ash from manure burning.
(b) Arsenic.
(c) Calcium chloride, brine process is natural and prohibited for use except as a foliar spray to treat a physiological disorder associated with calcium uptake.
(d) Lead salts.
(e) Potassium chloride—unless derived from a mined source and applied in a manner that minimizes chloride accumulation in the soil.
(f) Rotenone (CAS # 83-79-4).
(g) Sodium fluoaluminate (mined).
(h) Sodium nitrate—unless use is restricted to no more than 20% of the crop's total nitrogen requirement; use in spirulina production is unrestricted until October 21, 2005.
(i) Strychnine.
(j) Tobacco dust (nicotine sulfate).
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.