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 Code of Federal Regulations (Last Updated: July 5, 2024)
 Title 7 - Agriculture
 Subtitle B - Regulations of the Department of Agriculture
 Chapter I - Agricultural Marketing Service (Standards, Inspections, Marketing Practices), Department of Agriculture
 SubChapter M - Organic Foods Production Act Provisions
 Part 205 - National Organic Program
 Subpart G - Administrative
 The National List of Allowed and Prohibited Substances

  § 205.602 - Nonsynthetic substances prohibited for use in organic crop production.  

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  • § 205.602 Nonsynthetic substances prohibited for use in organic crop production.

    Cross Reference
    Link to an amendment published at 83 FR 66572, Dec. 27, 2018.

    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).

    (

    g

    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.

    (

    h

    i) Strychnine.

    (

    i

    j) Tobacco dust (nicotine sulfate). (j)-(z)

    [

    Reserved]

    [68 FR 61992, Oct. 31, 2003, as amended at 83 FR 66572, Dec. 27, 2018]