Expert Witness in USP 797 Compliant Pharmacy Construction
Empire Projects, Inc., through its principal William N. Bernstein, AIA, has provided expert witness services in matters involving the construction, renovation, and project management of USP <797> compliant pharmacy facilities and related properties, including hospital IV admixture and central pharmacy cleanrooms, ambulatory infusion compounding rooms, 503A pharmacy sterile compounding facilities, 503B outsourcing facility sterile suites, and other sterile compounding facilities subject to USP <797>. Attorneys litigating cases that involve the construction, renovation, or project management of these facilities will need an expert witness such as William N. Bernstein, AIA, to address: construction defects, scheduling and delay claims, change order disputes, contractor and subcontractor performance issues, project management failures, cost overruns and budget disputes, payment disputes and mechanic’s liens, contract administration and interpretation, means and methods, construction safety, cleanroom classification and certification failures (ISO 5, ISO 7, ISO 8), primary engineering control (PEC) installation and integration problems, buffer-room and anteroom construction defects, pressurization cascade installation failures (positive cascade for non-hazardous sterile compounding), HEPA filtration and air-change-per-hour installation deficiencies, gowning room and pass-through window installation problems, surface materials and gap-free joint installation defects affecting cleanability, accessibility violations, fire safety and egress, water infiltration and building envelope failures, phased-construction disputes, and other claims related to USP <797> compliant pharmacy construction. Mr. Bernstein is an expert witness who understands both the applicable codes, standards, and contractual frameworks and the practical realities of how USP <797> compliant pharmacy construction and renovation projects are managed and executed in the field.
About USP 797 Compliant Pharmacy Construction
USP <797> compliant pharmacy construction and renovation encompasses sterile compounding facilities, including hospital IV admixture rooms, central pharmacy cleanrooms, ambulatory infusion center compounding rooms, 503A pharmacy sterile compounding facilities, 503B outsourcing facility sterile suites, and the support spaces that serve them, including ISO 7 buffer rooms (with PECs achieving ISO 5 within), ISO 7 (or ISO 8, depending on the configuration) anterooms with the required positive-pressure cascade, gowning rooms, pass-through windows or airlocks, segregated compounding areas (SCAs), and storage and staging areas. USP <797> compliant pharmacy construction is particularly demanding because the constructed environment must achieve specific ISO classifications (verified by independent third-party certification) and maintain a prescribed pressurization cascade, with surfaces and joinery built to gap-free cleanability standards.
The construction and renovation of USP <797> compliant pharmacies is governed by a complex framework of building codes, regulations, and industry 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, USP General Chapter <797> for sterile compounding (which prescribes ISO classifications, pressurization, PEC selection, HEPA filtration, air-change rates, and surface and material requirements), ISO 14644 cleanroom classification standards, FDA cGMP requirements where the facility is a 503B outsourcing facility, state board of pharmacy regulations (including state-level adoption of USP <797>), ADA requirements, and state and local department of health requirements. In addition, USP <797> compliant pharmacy construction projects are governed by private agreements — leases and work-letters where the pharmacy is a tenant, the prime contract and subcontracts, equipment vendor installation requirements, third-party certification agreements, and institutional procurement and approval procedures. These projects are also typically subject to insurance requirements, indemnification obligations, and bonding requirements that materially affect how risk is allocated and how disputes are resolved.
Disputes in USP <797> compliant pharmacy construction commonly arise over scheduling and delay claims, particularly when third-party cleanroom certification fails and the project must be reworked; change order disputes driven by board of pharmacy review comments, certification failures, late-discovered field conditions, and owner-directed scope changes; cost overruns and budget disputes; payment disputes and mechanic’s liens; contractor and subcontractor performance and coordination failures, particularly among HVAC, controls, electrical, low-voltage, plumbing, casework, cleanroom-panel, and door/window trades whose work must achieve cleanroom-grade tolerances and pass certification; cleanroom classification and certification failures (failure to achieve ISO 5 in PECs, ISO 7 in buffer rooms, or ISO 7/8 in anterooms); installation defects in PECs (LAFW, BSC Class II Type A2 or B2, CAI) and their integration with the buffer room; buffer-room and anteroom construction defects including non-compliant pressurization, air-change rates, and HEPA-terminal arrangement; gowning room and pass-through installation defects; surface materials and joint installation defects that fail cleanability and gap-free requirements; accessibility and fire-safety construction defects; building envelope and water-infiltration failures; commissioning and certification failures; and disputes arising from phased construction. Responsibility for these issues is allocated, in different ways, among the pharmacy operator, the landlord (where applicable), the contractor, subcontractors and specialty vendors, the construction manager or owner’s representative, the design professional, the certifying party, the board of pharmacy, and the party responsible for ongoing maintenance, and litigation in this area frequently turns on the allocation of responsibility for construction means and methods, sequencing, supervision, quality control, equipment coordination, commissioning, certification, and post-occupancy maintenance.
Expert Witness Services Related to USP 797 Compliant Pharmacy Construction
Expert witness services in USP <797> compliant pharmacy construction matters typically include a careful review of the project documents (drawings, specifications, submittals, RFIs, change orders, schedules and schedule updates, daily reports, meeting minutes, pay applications, lien waivers, permits, certificates of occupancy, cleanroom certification reports, environmental monitoring records, HEPA and pressurization test reports, PEC certification reports, HVAC validation documentation, board of pharmacy filings, commissioning reports, punch lists, and as-built conditions), a site survey to measure and document the conditions at issue, comparison of those conditions against the applicable building codes, life safety codes, healthcare facility guidelines, accessibility standards, contract documents, and industry standards of care for construction and project management, review of construction administration records and maintenance histories, and the preparation of clear, well-supported opinions regarding causation, responsibility, the standard of care applicable to USP <797> compliant pharmacy construction, and the quantification of delay, disruption, and damages.
An effective USP <797> compliant pharmacy construction expert witness must be able to explain technical and project-management issues — construction sequencing and scheduling, change order management, contract interpretation (including AIA-form contracts and ConsensusDocs), construction means and methods, cleanroom construction tolerances and cleanability of joints and surfaces, USP <797> sterile compounding facility construction, ISO classification and certification, PEC installation and integration, buffer-room and anteroom construction, pressurization cascade construction and balancing, HEPA filtration installation and certification, gowning and pass-through installation, fire-rated assembly construction, egress geometry, accessibility installation, construction safety, code compliance, commissioning and certification, and the allocation of responsibility among owner, contractor, subcontractors, construction manager, design professionals, certifying parties, and specialty vendors — 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 a construction project management firm, Empire Projects, Inc. (2003-Present), and as the founder/owner of an architectural firm, Bernstein & Associates, Architects (1990-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.
Contact
Please contact Empire Projects, Inc., for expert witness services related to USP <797> compliant pharmacy construction.