CFR > Title 7 - Agriculture > SUBTITLE B—Regulations of the Department of Agriculture > CHAPTER I—AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (parts 27 to 206) > SUBCHAPTER M—ORGANIC FOODS PRODUCTION ACT PROVISIONS (parts 205 to 206) > PART 205—NATIONAL ORGANIC PROGRAM > SUBPART G—Administrative (§205.600 to §205.691-205.699) > 205.602—Nonsynthetic substances prohibited for use in organic crop production.

205.602—Nonsynthetic substances prohibited for use in organic crop production.

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) Sodium fluoaluminate (mined).
(g) 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.
(h) Strychnine.
(i) Tobacco dust (nicotine sulfate).
(j) -(z) [Reserved]

Code of Federal Regulations

[68 FR 61992, Oct. 31, 2003]