How to Properly Dispose of Biohazard Waste According to OSHA

Managing biohazard waste correctly protects your team, patients, and the public while keeping your facility compliant. This guide explains how to dispose of biohazard waste according to OSHA—from defining regulated waste to selecting treatment methods and training employees—using practical steps you can implement today.

Regulated Waste Definition

Under OSHA’s Bloodborne Pathogens Standard, regulated waste focuses on materials that can release bloodborne pathogens during handling. It is narrower than general “medical waste,” so you should classify intentionally and document your decisions.

What counts as regulated waste

• Liquid or semi-liquid blood and other potentially infectious materials (OPIM)—also called Potentially Infectious Materials.
• Items caked with dried blood/OPIM that could release these materials when compressed or handled.
• Contaminated sharps (needles, scalpel blades, broken glass that may be contaminated).
• Pathological and microbiological wastes containing blood or OPIM (e.g., cultures, stocks).

What usually does not qualify

• Items without visible blood or OPIM and unlikely to release them during handling.
• General trash that has not been contaminated by blood or OPIM.

When uncertain, assess the potential for liquid release and exposure risk. When in doubt, manage as regulated waste and document the rationale.

Segregation and Containment

Segregate at the point of generation—right where the waste is produced—to minimize handling and exposure. Use the correct color-coding, closures, and Biohazard Labeling to ensure clear identification throughout the workflow.

Primary packaging

• Place soft biohazard waste in red, leak-resistant bags that are strong enough for the contents. Tie off securely before removal.
• Use rigid, closable containers for liquids and saturated materials that could leak during handling.
• Apply Biohazard Labeling (fluorescent orange/orange-red with the biohazard symbol) or use red containers as permitted.

Secondary Containment

• Whenever leakage, puncture, or rough handling is possible, place the primary package into a rigid, leak-proof secondary container with a tight-fitting lid.
• Use trays or tubs for transporting liquids between rooms; keep containers upright.

Work practices and PPE

• Wear appropriate Personal Protective Equipment—at minimum gloves; add gowns, eye/face protection, and shoe covers based on the task.
• Never compact, bend, or manually press down waste to “make room.”
• Implement Decontamination Procedures for reusable totes or carts after each use.

Sharps Disposal

Sharps cause the highest risk of percutaneous exposure. Control that risk with engineered containers, disciplined handling, and prompt disposal.

Sharps containers

• Use closable, leak-proof, puncture-resistant containers labeled or color-coded for biohazards—i.e., true Puncture-Resistant Containers.
• Place containers at the point of use, keep them upright, and replace at the manufacturer’s fill line (typically about three-quarters full).
• Seal before moving; never reopen filled containers.

Safe handling rules

• Do not bend, shear, break, or recap needles. If recapping is unavoidable for a procedure, use a one-handed scoop or a mechanical device.
• Pick up broken contaminated glass with tongs or a broom and dustpan—never your hands—even with gloves.
• Never dispose of sharps in red bags, regular trash, sinks, or toilets.

Storage Requirements

Store biohazard waste in a way that prevents leaks, limits access, and maintains identification until final removal. Your state medical waste rules may set additional time/temperature limits—follow whichever rule is more protective.

• Keep containers closed, intact, and upright in a designated, secure area away from food, clean supplies, and high-traffic corridors.
• Use refrigeration or freezing for pathology or other wastes if required by state or local regulation or when extended storage is unavoidable.
• Maintain clear Biohazard Labeling on outer containers; replace labels that are obscured by condensation or wear.
• Inspect storage areas on a defined schedule for leaks, damage, pests, or expired accumulation times; document each inspection.
• Clean and disinfect floors, racks, and carts routinely using written Decontamination Procedures.

Transportation

Safe movement—both within your facility and offsite—depends on secure packaging, clear labeling, and trained personnel.

Onsite movement

• Use covered, rigid carts or dollies dedicated to biohazard waste; implement Secondary Containment for liquids.
• Plan routes that avoid patient-care areas when possible; never leave waste unattended in public spaces.
• Carry a spill kit and follow immediate Decontamination Procedures for any release.

Offsite shipment

• Package waste in compliant, UN-rated containers with proper marks and Biohazard Labeling.
• Ensure shipping papers/manifests are accurate and retained per recordkeeping rules to maintain chain of custody.
• Use a licensed Medical Waste Disposal Service; verify training, permits, and treatment capabilities during vendor selection.

Disposal Methods

Your goal is to render waste noninfectious and unrecognizable where required, then dispose of residues appropriately. Match the waste type to a validated treatment technology.

• Steam sterilization (autoclaving): effective for most microbiological and soft wastes when cycles are validated and routinely monitored.
• Incineration: used for pathological, pharmaceutical, and certain trace-chemotherapy wastes; destroys both pathogens and anatomical identity.
• Chemical disinfection: suitable for certain liquid wastes when using EPA-registered agents at the correct concentration and contact time.
• Microwave or advanced thermal systems: alternative treatments that achieve required microbial inactivation when properly validated.

Maintain treatment logs, biological indicators (as applicable), and certificates of destruction from your Medical Waste Disposal Service. After treatment, handle residues according to local solid waste rules.

Employee Training

OSHA requires initial and at least annual training for employees with occupational exposure. Training must be understandable to your workforce and reflect your actual tasks, risks, and controls.

Required training elements

• Your Exposure Control Plan, routes of transmission, and task-specific risks involving Potentially Infectious Materials.
• Engineering controls and work practices (e.g., sharps safety devices, no-recapping rules, segregation steps, spill response).
• Selection, use, limitations, and disposal of Personal Protective Equipment.
• Biohazard Labeling, color-coding, container closure, and Secondary Containment requirements.
• Hepatitis B vaccination offering, post-exposure evaluation, and follow-up procedures.
• Decontamination Procedures and housekeeping schedules for equipment, surfaces, and transport carts.
• Recordkeeping, incident reporting, and how to access regulatory information.

Conclusion

Proper disposal of biohazard waste according to OSHA is a cradle‑to‑grave system: define regulated waste correctly, contain and label it at the source, use puncture-resistant sharps controls, store and transport securely, and select validated treatment methods. With competent training, clear procedures, and a reliable Medical Waste Disposal Service, you safeguard people, prove compliance, and keep operations running smoothly.

FAQs

What materials are classified as biohazard waste under OSHA?

OSHA classifies regulated waste as liquid or semi-liquid blood and other potentially infectious materials (OPIM), items caked with dried blood/OPIM that could release these materials during handling, contaminated sharps, and pathological or microbiological wastes containing blood or OPIM. Materials that cannot release blood or OPIM during normal handling generally fall outside this category.

How should sharps be disposed of safely?

Place sharps immediately into closable, leak-proof, puncture-resistant containers that are labeled or color-coded for biohazards. Keep containers upright at the point of use, do not recap unless medically necessary (then use a one-handed method or device), replace containers at the fill line, and never place sharps in red bags or regular trash.

What training is required for employees handling biohazard waste?

Employees with occupational exposure must receive initial and at least annual training that covers your Exposure Control Plan, risks from Potentially Infectious Materials, PPE selection and use, sharps safety, Biohazard Labeling and color-coding, Secondary Containment, spill response and Decontamination Procedures, the Hepatitis B vaccine offering, and post-exposure follow-up. Training must reflect actual tasks and be understandable to the workforce.

What are the storage requirements for biohazard waste containers?

Keep containers closed, upright, and leak-free in a secure, designated area with Biohazard Labeling visible. Prevent public access, separate from clean supplies and food areas, use refrigeration or freezing when required or when extended storage is unavoidable, conduct and document routine inspections, and decontaminate floors, racks, and carts on a defined schedule.