Expert Witness in Compounding Facilities Design and Construction
Bernstein & Associates, Architects, through its principal William N. Bernstein, AIA, has provided expert witness services in matters involving the design and construction of pharmacy compounding facilities and related properties. Attorneys litigating cases that involve construction defects, cleanroom classification and certification failures, primary engineering control (PEC) and secondary engineering control (SEC) integration problems, pressurization cascade failures (positive for non-hazardous sterile compounding, negative for hazardous drug compounding), HEPA filtration and air-change-per-hour deficiencies, gowning and anteroom design defects, hazardous drug containment failures under USP <800>, surface contamination and cleanability issues, water for injection and pharmaceutical water system problems, accessibility violations, fire safety and egress issues, water infiltration and building envelope failures, phased-construction disputes, and other claims related to the design and construction of compounding facilities require an expert witness architect who understands both the applicable building codes and standards and the practical realities of how those requirements are applied in the design, construction, and renovation of real compounding facilities.
About Compounding Facilities Design and Construction
Compounding facility design and construction encompasses a range of facility types, including hospital pharmacy IV admixture rooms and central pharmacies, ambulatory infusion center compounding rooms, oncology compounding facilities, hazardous drug compounding facilities, 503A pharmacy compounding facilities, 503B outsourcing facilities, veterinary compounding pharmacies, nuclear pharmacy compounding facilities, and the support spaces that serve them, including ISO-classified buffer rooms, anterooms, segregated compounding areas (SCAs), containment SCAs (C-SCAs), gowning rooms, storage areas, and equipment and material airlocks.
The design and construction of compounding facilities is governed by a complex framework of technical standards, including the applicable building code (for example, in New York City, the New York City Building Code), the International Building Code, ICC A117.1, NFPA 101 Life Safety Code, NFPA 99 Health Care Facilities Code, ASHRAE 170, ADA requirements, USP General Chapter <797> for sterile compounding, USP General Chapter <800> for handling hazardous drugs, USP General Chapter <795> for non-sterile compounding, ISO 14644 cleanroom classification standards, FDA cGMP requirements for 503B outsourcing facilities, NIOSH hazardous drug list, state board of pharmacy regulations, and state department of health requirements.
Disputes commonly arise over construction defects affecting building envelopes and interior finishes; cleanroom classification and certification failures (failure to achieve ISO 5, ISO 7, or ISO 8 classifications where required); primary engineering control (LAFW, BSC, CACI, CAI) selection and integration problems; secondary engineering control room pressurization and air-change deficiencies; failure to maintain the required pressurization cascade (positive for non-hazardous sterile, negative for hazardous drugs under USP <800>); HEPA filtration design and certification issues; gowning room and anteroom design defects; hazardous drug containment failures including non-compliant C-SCA and containment buffer room design; surface materials that fail cleanability and gap-free joint requirements; water for injection and pharmaceutical water system failures; non-compliant accessibility features; inadequate fire-rated assemblies and egress; and disputes arising from phased-construction projects. Responsibility for compliance with the applicable standards is shared, in different ways, among the operator, the landlord, the design professional, the contractor, subcontractors, specialty vendors, and the party responsible for ongoing maintenance, and litigation in this area frequently turns on the allocation of responsibility for design decisions, construction means and methods, and post-occupancy maintenance.
Expert Witness Services Related to Compounding Facilities Design and Construction
Expert witness services in compounding facility design and construction matters typically include a careful review of the project documents (drawings, specifications, submittals, RFIs, change orders, permits, certificates of occupancy, ICRA plans, department of health filings and approvals, lease agreements, commissioning reports, and as-built conditions) (along with cleanroom certification reports, environmental monitoring records, and PEC and HVAC validation documentation), a site survey to measure and document the conditions at issue, comparison of those conditions against the applicable building codes, life safety codes, USP <797> and <800> requirements, ISO 14644 standards, accessibility standards, and industry standards of care, review of construction administration records and maintenance histories, and the preparation of clear, well-supported opinions regarding the cause of the defect or failure, the responsibility of the various parties, and the standard of care applicable to the design, construction, and maintenance of compounding facilities.
An effective compounding facility design and construction expert witness must be able to explain technical requirements — cleanroom classification under ISO 14644, USP <797> sterile compounding design, USP <800> hazardous drug containment design, primary and secondary engineering control integration, pressurization cascades and air-change-per-hour requirements, HEPA filtration design, gowning and anteroom layout, surface and joint cleanability, fire-rated assembly construction, egress geometry, accessibility clearances, and building envelope detailing — in plain language to judges, juries, arbitrators, and mediators, and must have the credentials, written record, and courtroom-ready communication skills to render credible opinions.
Mr. Bernstein is a Yale-trained, NCARB-certified, LEED-accredited, registered architect. He has expertise in architectural design, engineering design, and construction as the founder/owner of an architectural firm, Bernstein & Associates, Architects, (1990-present) and as the founder/owner of a construction project management firm, Empire Projects, Inc. (2003-Present). He has been the expert witness (as of May 2026) on (40) cases involving design and construction (2006-present) across the United States and Internationally.
Mr. Bernstein’s compounding facility and pharmacy design experience includes USP <797> and USP <800> compliant pharmacy compounding projects, hospital central pharmacies, and pharmacy compounding commissions in New York, Connecticut, and Las Vegas. Mr. Bernstein has authored published work on pharmacy design and USP <797>/<800> compliant compounding facility design. This depth of hands-on architectural design experience — from program development and code analysis through construction administration and commissioning — provides the technical foundation needed to render credible expert opinions on compounding facility and pharmacy design and construction disputes.
Contact
Please contact Bernstein & Associates, for expert witness services related to the design and construction of pharmacy compounding facilities.