Medical waste
Pathological waste disposal
Tissue, organs and anatomical specimens, which almost always require incineration.
Pathological waste includes human tissues, organs, body parts and anatomical specimens. Most state programmes require incineration rather than autoclaving, and many prohibit disposal in ordinary medical waste streams.
Source: State medical waste programmesWhat falls in this category
- Surgical specimens and removed tissue
- Organs and body parts
- Anatomical specimens from pathology and autopsy
- Research animal carcasses and tissue
- Products of conception, subject to specific state requirements
- Specimens preserved in formalin, which adds a RCRA question
Formalin preserved specimens carry both a medical waste and a chemical waste question. The formalin may make the stream RCRA relevant, and the two determinations are made together rather than sequentially.
Why incineration
Autoclaving renders material non infectious but leaves it recognizable, which most state programmes will not accept for anatomical waste on dignity grounds as much as on public health grounds.
Incineration is therefore the standard route, and it is a narrower and more expensive one. Several states add chain of custody and documentation requirements specific to anatomical waste.
Handled through our division
Pathological waste is collected and routed by Bio Med Solutions. Where specimens are formalin preserved, Greer handles the chemical side of the determination.
Visit Bio Med SolutionsCommon questions
Can pathological waste be autoclaved?
Most state programmes require incineration for anatomical waste. Check the applicable state rule, because this is an area where state requirements differ materially.
What about formalin preserved specimens?
The specimen and the formalin are assessed together. Formaldehyde solutions can be RCRA relevant depending on concentration, which changes the route for the whole container.
Are research animals treated the same way?
Generally yes, as pathological waste. Where animals were dosed with hazardous or radioactive materials, additional requirements apply and the carcass carries those as well.
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This page summarizes federal requirements and is not legal advice. State programs can be more stringent than the federal baseline. Verify against current federal and state regulations before acting. Last reviewed September 2026.