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May 19, 2020
Humic Products Trade Association: Biostimulant Policy Initiative Update
As required by the 2018 Farm Bill, the United States Department of Agriculture (USDA) issued a report to Congress detailing options that could clarify the regulation of Biostimulants. Unfortunately, the USDA Biostimulant report sent out in December of 2019 indicted six options that offered very little clarity to congressional members or a preferred path going forward.  In response to this USDA report, HPTA, along with other key industry organizations, drafted a joint position letter outlining and affirming our position on policy developments for biostimulants.
Members wishing to read a copy of the joint response can find the correspondence linked here:  Industry Position Paper USDA Report 3.30.20.

May 6, 2020
HPTA Annual Meeting – VIRTUAL event

The HPTA 2020 annual meeting was planned as a joint meeting with the International Humic Substance Society (IHSS). Due to complications with international travel and concerns with the COVID-19 pandemic, the IHSS 2020 meeting will not be held this August.
The HPTA meeting will still take place the same day and be held as a virtual event, Monday, August 17th.

March 2020
CDFA Approves use of HPTA Test Method Seal  

HPTA members can now use the HPTA Test method and seal on products sold in California, provided the humic acid guarantee on the label is valid when also tested with the current CDFA method and follows the guidelines outlined in the January 16th letter from Dr. Dale Woods, CDFA Environmental Program Manager.

This decision applies only to the humic acid and does not include fulvic acid (yet).

EPA issues Draft Guidance for Plant Regulator Label Claims, Including Plant Biostimulants
The public comment period is now closed and the comments are under review by the agencies.

December 2019
HPTA President, Russell Taylor met with representatives of the EPA in Washington, D.C. on Friday, November 22nd,  reviewing HPTA’s position and concerns with the EPA.  Overall, the discussion was well received and informative in nature.  Next steps and decisions are expected in 2020.

May 6, 2019
Recently the Environmental Protection Agency (EPA) issued a draft guidance document to better define Plant Biostimulants as regulated substances under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). HPTA members are encouraged to read the document and submit a public comment directly to the open docket on the website.

EPA Draft Guidance – In general, a draft guidance document is needed and welcomed by the biostimulant industry as a whole.  However, the proposed changes to humic and fulvic acid could significantly impact the humic and fulvic acid industry. The EPA Draft Guidance document is now open for public comments.   (Important Update: The EPA has extended the comment period to July 28, 2019Your voice matters!)

For additional information including how to register comments; please see this HPTA Member communication from Humic Products Trade Association President; Russell D. Taylor.
EPA issues Draft Guidance HPTA Comment

HPTA Member Exclusive:  Important supplemental documents can be found in the Members Area of  (If you are a current HPTA Member and need help with your login, contact

New Farm Bill lays the ground work for Humic Substances
Dec. 21, 2018 – Last week the US House of Representatives passed the Senate Farm bill. Included in the farm bill was key language laying the groundwork for defining “plant biostimulants” in the United States While there is still work to be done with the USDA, this piece of legislation will help provide the framework needed in the agriculture industry to define and shape the biostimulant industry and further the growth of humic substance sales.

Humic Products Trade Association Test Method
July 2018 – ISO Approves HPTA Test Method as an International Standard

Humic & Fulvic Acids – Standardized Test Method Information



December, 2020
Virtual Conference


Journal of Soils and Sediments / Humic Products in Agriculture: Potential Benefits and Research Challenges – a Review

Biochar and Humic Substances: A Comparison


HPTA Board Meetings: Teleconferences are generally held the second Tuesday of the month at 2 p.m. Central time.
Upcoming meeting:  Tuesday, Sept. 8th, 2020 at 2:00 p.m. CDT.
HPTA Members in good standing, are welcome to attend.

November 15, 2010,  HPTA Formation

Humic Products Trade Association Newsletters
HPTA 2019 Summer
Spring 2018
Spring 2017
Summer 2016
Summer 2015
December 2013
February 2013
September 2012
April 2012

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