Where must a C-PEC sit when compounding hazardous drugs under USP 800?

In a C-SEC. Hazardous drug compounding is performed in a containment primary engineering control (C-PEC) located in a containment secondary engineering control (C-SEC) that meets applicable containment requirements. USP 800 addresses placement of sterile and nonsterile HD compounding in appropriate C-PEC / C-SEC configurations. Room pressure, external venting, and segregation depend on the type of compounding and your engineered controls — confirm in your licensed USP 800 text and facility documentation. Educational framing only. Not an inspection-outcome guarantee.

Under USP 800, hazardous drug compounding is performed in a containment primary engineering control (C-PEC) that sits inside a containment secondary engineering control (C-SEC) meeting applicable containment requirements.

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What this means for the facility

USP 800 addresses placement of sterile and nonsterile HD compounding in appropriate C-PEC / C-SEC configurations. Room pressure, external venting, and segregation depend on the type of compounding and your engineered controls — confirm in your licensed USP 800 text and facility documentation.

Educational framing only. Not legal advice. Not an inspection-outcome guarantee.

  • Map each HD process to its C-PEC and the C-SEC that houses it.
  • Confirm C-SEC containment features against certification reports.
  • Keep room configuration current in Compounding AI Pro so answers match your layout.
  • Verify any state or surveyor expectations beyond USP.

Why Compounding AI Pro (not a generic chatbot)

PharmacyCompounding.AI’s Compounding AI Pro is pharmacist-trained USP compliance AI chat with citation-backed answers for USP 795, 797, and 800, plus compounding room setup, licensed USP chapter uploads, and team seats. Never fear a compounding inspection. Start Free Demo.

  • Pharmacist-trained USP 795/797/800 chat with citation-backed answers.
  • Room setup that records your PECs and USP categories so follow-ups can match your layout.
  • Optional grounding in licensed USP chapter text you attest and upload.
  • Free limited demo — ask a few questions before you subscribe.
  • Team seats so techs and pharmacists share the same cited starting point.

State boards can add overlays

USP is the national pattern many boards reference. Boards may still add facility-class or documentation rules (for example TX 22 TAC §291.133 or CA CCR 1735 — illustrative only). Verify locally.

FAQ

What is a C-PEC vs a C-SEC?
A C-PEC is the containment primary device (for example a BSC or CACI class device as applicable). A C-SEC is the room that contains it under USP 800 containment design.
Does sterile HD differ from nonsterile HD placement?
Both use C-PEC in C-SEC patterns; engineering details differ. Check your licensed chapter and certification reports.
Can this page certify my cleanroom?
No. Education only. Certification and PIC oversight remain required.
How is Compounding AI Pro different from ChatGPT?
Compounding AI Pro is pharmacist-trained USP compliance guidance with citation-backed 795/797/800 answers, compounding room setup, and licensed USP chapter uploads — not a generic chatbot.

Related

Educational information only. Not legal advice. Not an inspection-outcome guarantee. Keep a current USP Compendium subscription. PIC judgment and your board still govern.