Expires: December 31. Renewal apps are sent out in November.
Cost: $20.00
Contact: April Hunt 517-241-2979
Forms: Agricultural Liming License Application

Liming Material is defined as "all or any form of limestone, lime rock, marl, slag, by-product lime, industrial or factory refuse lime, water softener lime, and any other material manufactured, prepared, sold or distributed primarily to correct soil acidity."

Who needs a license?

All agricultural liming materials manufactured or distributed in Michigan must be licensed with MDA by the manufacturer/distributor

A distributor is not required to obtain a license if they are selling liming materials of a manufacturer/distributor that is already licensed and the principle mailing address of the licensed manufacturer/distributor appears on the labeling .

What does it cost to be licensed?

A $20.00 license fee is required for all or any part of a calendar year. All liming licenses expire on December 31 and must be renewed on a yearly basis. Renewal applications are sent out in November.

What type of labeling is required?

A copy of the label or invoice statement must be submitted when applying for a liming license. The label/invoice must contain the following information:

• The net weight (volume if material not sold on a scale weight basis)
• Product name
• Name and address of manufacturer or distributor
• Minimum neutralizing value in terms of calcium carbonate
• Degree of fineness expressed as minimum percentage passing through an 8-mesh, 60-mesh, and 100-mesh screen.

NOTE:  Marl and refeuse lime materials (sugar factory, paper mill, carbide, water treatment, mater softener, wood ash, etc.) do not need to state the degree of fineness on the label/invoice.  Instead, the minimum neutralizing value may be identified as "X" lbs per cubic yeard (expresssed as calcium carbonate equivalent).

What should I do if there are changes in company, ownership, name or address? 

Any change in the ownership of a licensed firm will require an application and fee for a new license.  Companies with a change of name and/or address will need  to send written notification to MDA so records can be updated accordingly.

1. Download and print a copy of the Agricultural Liming Materials Product License Application or contact 517-241-6666.
2. Complete an application for each product, include a copy of the product label or invoice, attach your check or money order made out to the State of Michigan and mail it to:

Michigan Department of Agriculture
Pesticide & Plant Pest Management Division
Specialty Fertilizers/Bulk Storage Section
PO Box 30017
Lansing, MI 48909