(g) Pieces of hide remaining at the completion of curing must be removed and added to
a new active compost batch or be disposed of under section 21 of 1982 PA 239, MCL
287.671, before the compost may be sold, transferred, or applied to crop land. In
emergency composting situations, the Director may authorize the removal of unfinished
compost to a new site.
(h) Large bones of mature animals remaining at the completion of curing must be
crumbled during the mechanical spreading process, removed, and added to a new active
compost batch, or disposed of under section 21 of 1982 PA 239, MCL 287.671, before
the compost may be sold, transferred, or applied to crop land.
(i) Flies, rodents, pests, vermin, and other scavengers or predators must be controlled
so as not to disrupt the compost piles or constitute a risk or health hazard to human or
animal populations.
(j) Odors must be controlled in accordance with the Michigan Animal Tissue
Composting Operational Standards, as adopted by reference in R 287.651a.
(14) The disposition of finished compost may be by direct application to soils, sale, or
other transfer of ownership. Application to soils must be done in accordance with the
recommendations within the 2023 Generally Accepted Agricultural and Management
Practices for Nutrient Utilization, as specified in the Michigan right to farm act, 1981 PA
/media/Project/Websites/mdard/documents/environment/rtf/2023-GAMPS/2023-
Nutrient-Utilization-GAAMPs.pdf.
(15) In the interest of public health or animal health, the director may require that any
compost be tested at a laboratory approved by the director for certain pathogenic
organisms or any contaminant before the compost leaves the composing site.
(16) Unless otherwise authorized by the Director, composting dead animals must not be
removed from the composting site, except as finished compost, unless the dead animal is
disposed of in accordance with section 21 of 1982 PA 239, MCL 287.671.
(17) The owner or operator of the composting site shall keep records for 5 years
containing the following information and make the records available to the director
immediately on request:
(a) The start date of each compost batch.
(b) The approximate weight, maturity, and species of dead animals or afterbirth added
each time an addition is made and the dates the tissue is added to new compost batches.
(c) The temperature of each batch measured weekly, taken at a minimum of 1 foot
deep into the compost.
(d) The date or dates compost is mechanically aerated.
(e) The final disposition of finished compost, including the method, destination, date,
and volume for the batch.
(18) A contingency plan to remedy problems and ensure the proper disposal of dead
animals must be maintained at the compost site. The contingency plan must include all
the following information:
(a) A list of the following:
(i) The location of telephone numbers and emergency numbers for the police, the fire
department, and medical aid.
(ii) The individual or individuals responsible for the composting operation.
(b) An action plan for all of the following emergencies:
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