Fertilizers regulation – USA

Fertilizers and amending materials are regulated at the state level rather than by the Federal Government. The Association of American Plan Food Control Officials (AAPFCO) is an independent organization of state control officials that work together to develop a degree of uniformity between states on their regulatory guidelines. Due to the nature of guidelines, each state still maintains its own laws and regulations. TSG holds a comprehensive understanding of these differences in reporting and regulatory requirements between states and can assist with all aspects of amending materials and fertilizer registration.

What are TSCA requirements for fertilizer?

Unlike other types of agrochemicals, fertilizers and other substances used in the growing of crops are not exempt from the Toxic Substances Control Act (TSCA). All chemicals found in these products must be listed in the TSCA Inventory. While fertilizers are primarily made up of nitrogen, potassium, phosphorus, and other micronutrients, they can also contain a variety of heavy metals and chemical compounds. To ensure compliance and prevent substantial fines that risk halting business operations, it is crucial that all ingredients adhere to TSCA requirements.

TSG's fertilizer regulation consulting services

With TSG’s full product registration and maintenance services, our regulatory experts will monitor your product’s status and prepare and submit the documentation required to register and renew in all U.S. states. Our services include:

  • Developing label language and format
  • Reviewing label claims
  • Preparation and submission of new amending materials and fertilizer registrations
  • Renewals maintenance and tonnage reporting
  • Assessment of TSCA compliance status
  • Assistance with efficacy data requirements, if needed
  • Providing guidance on regulatory changes that may impact product registration

Need to understand which regulation relates to your fertilizer?


TSG provides companies with high-quality regulatory and scientific consulting services. We aim to understand our clients' goals and objectives, learn the scientific and technical aspects of projects and anticipate compliance challenges to plan a strategic path forward. TSG's team of experts is deadline-focused, responsive and committed to professionalism. We have the utmost respect for the confidentiality of our work, strong project management skills, and take great measure to cultivate long-term partnerships with clients.

Our professionals

Our state services and renewals team is based in Sacramento, California and can help with all aspects of U.S. fertilizer registration. The team is led by Kelly Rahn, Vice President, State Affairs & Head of TSG California, who specializes in the registration and ongoing compliance of pesticides and fertilizers at the US state and federal level.

Fertilizer regulation - frequently asked questions

Yes, generally a product and/or distributor must be registered and/or licensed in every state into which the product will be sold. This requirement is somewhat dictated by the product type and the claims made for the product. TSG’s consultants are experts in helping you navigate the complex regulatory landscape of fertilizers and amending materials.

Products that do not provide recognized plant nutrients, but still provide a benefit to plants or soil, are generally regulated as amending materials (soil amendment, plant amendment) in the U.S. This includes materials that physically improve soil conditions, microbial inoculant products, and chemical agents that improve soil characteristics, such as water retention. The need for registration in the states is dependent on the claims made for the product, the directions for use and the intended market. TSG can assist in determining the appropriate regulatory category for your product and where registration is required to maintain compliance.

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