# 7 CFR § 205.602: Nonsynthetic substances prohibited for use in organic crop production

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-7-205.602

## Section

- **Citation:** 7 CFR § 205.602
- **Heading:** Nonsynthetic substances prohibited for use in organic crop production
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** 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

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

## Nearby sections

- [7 CFR § 205.600 § 205.600 Evaluation criteria for allowed and prohibited substances, methods, and ingredients.](https://www.frixlaw.com/law-library/statutes/ecfr-7-205.600.md)
- [7 CFR § 205.601 § 205.601 Synthetic substances allowed for use in organic crop production.](https://www.frixlaw.com/law-library/statutes/ecfr-7-205.601.md)
- [7 CFR § 205.602 § 205.602 Nonsynthetic substances prohibited for use in organic crop production.](https://www.frixlaw.com/law-library/statutes/ecfr-7-205.602.md)
- [7 CFR § 205.603 § 205.603 Synthetic substances allowed for use in organic livestock production.](https://www.frixlaw.com/law-library/statutes/ecfr-7-205.603.md)
- [7 CFR § 205.604 § 205.604 Nonsynthetic substances prohibited for use in organic livestock production.](https://www.frixlaw.com/law-library/statutes/ecfr-7-205.604.md)
- [7 CFR § 205.605 § 205.605 Nonagricultural (nonorganic) substances allowed as ingredients in or on processed products labeled as “organic” or “made with organic (specified ingredients or food group(s)).”](https://www.frixlaw.com/law-library/statutes/ecfr-7-205.605.md)
- [7 CFR § 205.606 § 205.606 Nonorganically produced agricultural products allowed as ingredients in or on processed products labeled as “organic.”](https://www.frixlaw.com/law-library/statutes/ecfr-7-205.606.md)
- [7 CFR § 205.607 § 205.607 Amending the National List.](https://www.frixlaw.com/law-library/statutes/ecfr-7-205.607.md)
- [7 CFR § 205.620 § 205.620 Requirements of State organic programs.](https://www.frixlaw.com/law-library/statutes/ecfr-7-205.620.md)
- [7 CFR § 205.621 § 205.621 Submission and determination of proposed State organic programs and amendments to approved State organic programs.](https://www.frixlaw.com/law-library/statutes/ecfr-7-205.621.md)
- [7 CFR § 205.622 § 205.622 Review of approved State organic programs.](https://www.frixlaw.com/law-library/statutes/ecfr-7-205.622.md)
- [7 CFR § 205.640 § 205.640 Fees and other charges for accreditation.](https://www.frixlaw.com/law-library/statutes/ecfr-7-205.640.md)
- [7 CFR § 205.641 § 205.641 Payment of fees and other charges.](https://www.frixlaw.com/law-library/statutes/ecfr-7-205.641.md)
- [7 CFR § 205.642 § 205.642 Fees and other charges for certification.](https://www.frixlaw.com/law-library/statutes/ecfr-7-205.642.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-7-205.602. Check the current official text before relying on it. Not legal advice.