Confidential formula statement (CFS) for 25(b) products

Most states that register a FIFRA 25(b) pesticide want a confidential formula: every intentionally added ingredient, by weight, adding to 100%. EPA does not issue a 25(b) registration number, so the CFS is often the document the state uses to check the exemption.

What belongs on the sheet

• Registrant / guarantor name and U.S. mailing address
• Product name exactly as on the label
• Active rows first: EPA label display name, CAS when EPA lists one, supplier, function, nominal %
• Inert rows next: same columns. Water is an inert. List it.
• Active subtotal + inert subtotal = 100.0000%

Rules that get packets sent back

• An active not on EPA’s 25(b) active table
• An inert not on Table 2 of 40 CFR 152.25(f), and not a true 40 CFR 180.950 food, feed, or edible oil
• Ethanol (64-17-5) used as a solvent because it is common in Section 3 products — that is not Table 2. Isopropyl alcohol (67-63-0) is on Table 2.
• Trade names instead of the EPA display name
• CFS percentages that do not match the label ingredient statement
• A “fragrance” or extra essential oil that is actually an unlisted active

How we produce one

You send the label and the formula (under NDA). We map each line to the EPA lists, draft the CFS in the layout states already know, and flag anything that is not clearly listed. You review before it is filed. A CFS is not an approval.

Request a CFS quote 25(b) registration

Not EPA or state approval. Staff must verify the CFS against the printed label before filing.