§1424. Gypsum; analysis; limitation of liability
A. The Legislature of Louisiana hereby finds:
(1) That gypsum, one of the earliest forms of fertilizer and soil amendment used in
the United States, is a byproduct of many manufacturing facilities in Louisiana.
(2) Byproduct gypsum that is not recycled for other uses results in costly on-site
storage and disposal in landfills.
(3) Gypsum (calcium sulphate) is widely used in agricultural crop production to
provide essential plant nutrients and can improve overall plant growth.
(4) Gypsum can also improve the physical properties of soils, reducing erosion losses
of soil and nutrient concentrations.
B. Any agricultural producer or landowner that utilizes gypsum, and any supplier of
gypsum to the agricultural producer, shall not be liable for any civil damages arising out of
the utilization of the gypsum if all the following requirements are met:
(1) The requirements of this Section, and any rules and regulations adopted pursuant
to this Section, are complied with.
(2) The agricultural producer obtains gypsum, without any cost, from a source where
the gypsum is being stored as a byproduct of a manufacturing process.
(3)(a) The agricultural producer shall use gypsum only on his land or with written
authorization from the landowner once the gypsum is analyzed and passes analytical
tolerances established by the department, in consultation with the Louisiana State University
Agricultural Center. Such analysis shall be conducted by an accredited laboratory.
(b) The tolerances shall be established using as a guide the most recent version of the
Conservation Practice Standard, Amending Soil Properties with Gypsum Products, Code 333
as published by the Natural Resources Conservation Service of the United States Department
of Agriculture and any regulatory requirements that pertain to the use of soil amendments
required by the United States Environmental Protection Agency.
C. The commissioner is authorized to promulgate rules and regulations in accordance
with the Administrative Procedure Act to implement the provisions of this Section, including
the establishment of analytical tolerances for gypsum.
Acts 2025, No. 94, §1.