National Organic Standards Board 

Crops Subcommittee Proposal 

National List Technical Correction for Sodium Nitrate 

July 27, 2021 

Background: 

The NOSB seeks to make a technical correction to the listing for sodium nitrate. While sodium nitrate 

still appears on the National List of Allowed and Prohibited Substances (National List) with an annotation 

limiting its use (7 CFR 205.602(g) – prohibited nonsynthetic), the sunset review of sodium nitrate has 

been suspended. The current listing reads: 

Sodium nitrate – unless use is restricted to no more than 20 percent of the crop’s total nitrogen 

requirement; use in spirulina production is unrestricted until October 21, 2005. 

According to the sunset provision in OFPA, sodium nitrate was supposed to sunset from the National List 

on October 21, 2012. At that time, the sunset process required the NOSB to vote to relist a substance 

for it to remain on the National List. If the NOSB voted to not renew a substance, it would be referred to 

the NOP for rulemaking to remove it from the List. The current process differs in that the NOSB must 

vote to remove a substance from the list, otherwise the substance remains on the List. 

As part of the 2012 sunset review, the NOSB reviewed sodium nitrate at its April 2011, meeting and 

recommended that it be relisted, but without the annotation limiting its use. In other words, the NOSB 

voted to keep sodium nitrate on the National List with a complete prohibition on its use. During the 

rulemaking process, the NOP received comments about the economic significance of complete 

prohibition, which delayed rulemaking. While that rulemaking was supposed to be forthcoming, it was 

never developed nor passed. 

Currently the listing for sodium nitrate is in limbo. It was never renewed on the National List as a 

prohibited substance with or without the annotation limiting its use. While the wording remains on the 

National List, the listing is considered invalid. Therefore, sodium nitrate use is not restricted to 20% of a 

crop’s total N needs since the listing was not renewed during the 2012 sunset process. It can also be 

argued that at this time sodium nitrate should not even appear on the National List since it was never 

officially renewed. 

Subcommittee Review: 

In order to remedy and clarify this technical issue, stakeholders have asked the NOSB to formally 

reinstate the listing for sodium nitrate. This proposal is not intended to be a review about whether 

sodium nitrate should be listed with a 20% cap or be completely prohibited. While this Board notes that 

the previous NOSB voted for a complete prohibition, in order to ensure that sodium nitrate isn’t allowed 

for unlimited use, this Board recommends a formal motion to recognize the current listing and have it 

reviewed every five years as part of the sunset cycle. A future Board, or petitioner, can submit a petition 

for a complete prohibition and that can be debated separately from the resolution of the technical issue 

that is at currently at hand. 

NOSB Proposals and Discussion Documents October 2021 73 of 205
 

 

 

Subcommittee Vote: 

Motion to reinstate the listing of sodium nitrate at 7 CFR 205.602(g) - prohibited nonsynthetic: 

Sodium nitrate - unless use is restricted to no more than 20 percent of the crop’s total nitrogen 

requirement; use in spirulina production is unrestricted until October 21, 2005. 

Motion by: Steve Ela 

Seconded by: Brian Caldwell 

Yes: 8 No: 0 Abstain: 0 Absent: 0 Recuse: 0 

Approved by Rick Greenwood, Crop Subcommittee Chair, to transmit to NOP July 27, 2021. 

NOSB Proposals and Discussion Documents October 2021 74 of 205