§205.602. Nonsynthetic substances prohibited for use in organic crop production.
7 C.F.R. § 205.602
The following nonsynthetic substances may not be used in organic crop production:
Ash from manure burning.
Arsenic.
Calcium chloride, brine process is natural and prohibited for use except as a foliar spray to treat a physiological disorder associated with calcium uptake.
Lead salts.
Potassium chloride— unless derived from a mined source and applied in a manner that minimizes chloride accumulation in the soil.
Rotenone (CAS # 83-79-4).
Sodium fluoaluminate (mined).
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.
Strychnine.
Tobacco dust (nicotine sulfate).
Notes, amendments, and revision history
Amendments
[68 FR 61992, Oct. 31, 2003, as amended at 83 FR 66572, Dec. 27, 2018]
Authority
Authority: 7 U.S.C. 6501-6524.
Source
Source: 65 FR 80637, Dec. 21, 2000, unless otherwise noted.
Amendments
[68 FR 61992, Oct. 31, 2003, as amended at 83 FR 66572, Dec. 27, 2018]