Understanding USP 800 Requirements for Hazardous Drug Compounding
Published by LabCertTech LLC | Houston, Texas
If your pharmacy or healthcare facility handles hazardous drugs — including chemotherapy agents, antiviral medications, hormone preparations, or other drugs with known health risks — USP <800> is one of the most important regulatory standards governing your operations. Understanding what USP <800> requires, and how to maintain compliance, is essential for protecting your staff, your patients, and your facility.
What is USP <800>?
USP <800> is a standard published by the United States Pharmacopeia (USP) titled “Hazardous Drugs — Handling in Healthcare Settings.” It establishes requirements for the receipt, storage, compounding, dispensing, administration, and disposal of hazardous drugs in healthcare settings.
USP <800> applies to all healthcare personnel who handle hazardous drugs and all facilities where hazardous drugs are handled — including:
- Compounding pharmacies
- Hospital and health system pharmacies
- Ambulatory care pharmacies
- Oncology clinics and infusion centers
- Physician office practices
- Veterinary facilities
⚠️ Important: USP <800> became official and enforceable on December 1, 2019. State boards of pharmacy and accreditation bodies actively inspect for USP <800> compliance. Facilities found to be non-compliant face citations, corrective action plans, and potential operational shutdowns.
What is a Hazardous Drug?
USP <800> defines hazardous drugs as drugs that exhibit one or more of the following characteristics in humans or animals:
- Carcinogenicity (cancer-causing)
- Teratogenicity or developmental toxicity (harm to developing fetuses)
- Reproductive toxicity
- Organ toxicity at low doses
- Genotoxicity (DNA damaging)
- New drugs that mimic existing hazardous drugs in structure or toxicity
The National Institute for Occupational Safety and Health (NIOSH) publishes and regularly updates the NIOSH Hazardous Drug List — the primary reference document used to identify which drugs require USP <800> handling precautions.
Key Engineering Control Requirements Under USP <800>
USP <800> has very specific requirements for the engineering controls used to contain hazardous drugs during compounding. These requirements are more stringent than USP <797> because of the additional occupational safety risks associated with hazardous drug exposure.
| Engineering Control | Requirement | Standard |
|---|---|---|
| Containment Primary Engineering Control (C-PEC) | Class II Type B2 BSC or CACI for sterile HD compounding | NSF/ANSI 49 |
| Containment Secondary Engineering Control (C-SEC) | Negative pressure room ≥ 0.01″ w.c. | ISO 14644 |
| Air Changes Per Hour | Minimum 12 ACPH for C-SEC | USP <800> |
| HEPA Exhaust | 100% HEPA filtered exhaust to outside | USP <800> |
| Certification Frequency | Every 6 months | USP <800> |
Negative Pressure Requirements
One of the most critical — and most commonly cited — USP <800> requirements is the need for negative pressure in the hazardous drug compounding area. Unlike sterile compounding rooms which require positive pressure, hazardous drug compounding rooms must maintain negative pressure to prevent hazardous drug particles and vapors from escaping into adjacent spaces.
USP <800> requires:
- Negative pressure of at least 0.01 inches of water column (w.c.) relative to all adjacent spaces
- Continuous pressure monitoring with documented readings
- Audible or visual alarms for pressure excursions
- 100% HEPA filtered exhaust vented directly to the outside — recirculation of air from the hazardous drug compounding area back into the facility is not permitted
💡 Key point: The requirement for negative pressure in hazardous drug compounding areas is the opposite of sterile compounding buffer rooms which require positive pressure. Facilities that compound both sterile and hazardous drugs must carefully design their cleanroom layout to maintain both positive and negative pressure relationships simultaneously.
Personal Protective Equipment (PPE) Requirements
USP <800> establishes specific PPE requirements for personnel handling hazardous drugs. The required PPE varies based on the type of hazardous drug handling being performed:
- Chemotherapy gloves — ASTM D6978 tested, changed every 30 minutes or when torn or contaminated
- Gown — disposable, closes in the back, low permeability
- Hair and shoe covers — required when compounding hazardous drugs
- Eye and face protection — required when there is risk of splashing
- Respiratory protection — NIOSH approved respirator required for certain hazardous drug handling activities
What Needs to Be Certified Under USP <800>?
USP <800> requires certification of all containment engineering controls every 6 months. This includes:
- C-PEC certification — BSC, CACI, or other containment primary engineering control per NSF/ANSI 49
- C-SEC certification — negative pressure room particle count testing, airflow verification, ACH measurement
- HEPA filter integrity testing — all supply and exhaust HEPA filters
- Differential pressure verification — documented negative pressure relative to all adjacent spaces
- Air changes per hour measurement — verification of minimum 12 ACPH
USP <800> vs USP <797> — Key Differences
| Requirement | USP <797> Sterile Compounding | USP <800> Hazardous Drug Compounding |
|---|---|---|
| Room pressure | Positive pressure | Negative pressure (≥ 0.01″ w.c.) |
| Primary Engineering Control | LAFW, BSC, or CAI | Class II B2 BSC or CACI only |
| HEPA exhaust | Not always required | 100% to outside required |
| Minimum ACH | Not specified (per design) | Minimum 12 ACPH |
| Glove requirements | Sterile gloves | ASTM D6978 chemotherapy gloves |
| Certification frequency | Every 6 months | Every 6 months |
How LabCertTech Can Help
LabCertTech LLC provides comprehensive USP <800> certification services for compounding pharmacies, hospital pharmacies, oncology clinics, and healthcare facilities across Houston, Texas and surrounding areas. Our team performs all required containment engineering control testing including negative pressure verification, HEPA filter integrity testing, ACH measurement, and particle count testing.
We provide detailed certification reports that document your facility’s USP <800> compliance status and are ready for state board of pharmacy inspections and accreditation reviews.
Ready to Schedule Your USP <800> Certification?
Contact LabCertTech today — Houston’s veteran owned laboratory certification company.
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