The support and back-of-house spaces of a hospital — sterile processing, central supply, environmental services, food service, the loading dock, and the central plant — are governed by a dense, overlapping web of codes and standards. This article maps that regulatory landscape: which document owns which requirement, how the documents relate, and how an owner and project team should organize design, construction, and activation around them so that nothing falls into a gap between codes.

Unlike the sibling Articles that describe the physical systems (the central plant, SPD HVAC and steam, the pneumatic-tube and AGV systems), this Article is about the governance layer — the published standards and the authorities that enforce them — applied specifically to support and logistics scope. The same FGI/ASHRAE/NFPA stack governs clinical spaces too, but here the focus is on how it lands on the back-of-house.

Why support services live in a multi-code world

No single document tells you how to build a sterile processing department or a hospital kitchen. A compliant design is the intersection of several standards, each authored by a different body and adopted (or not) by a different jurisdiction:

• Architectural program, space, and finishes come from the FGI Guidelines.
• Ventilation, pressure relationships, air changes, and temperature/humidity come from ASHRAE 170, which FGI incorporates by reference.
• Sterilization, decontamination, and instrument reprocessing practice come from AAMI standards, principally ANSI/AAMI ST79.
• Medical gas, electrical, and utility systems risk come from NFPA 99.
• Emergency and standby power come from NFPA 110 (and NFPA 99/NEC 517 for how it is applied in health care).
• Life safety, egress, and construction type come from NFPA 101 and the IBC.
• Sterile and hazardous-drug compounding spaces come from USP <797> and USP <800>.

A team that treats any one of these as "the code" will miss requirements owned by the others. The discipline is knowing the seams.

FGI Guidelines: the architectural and HVAC backbone

The Facility Guidelines Institute (FGI) publishes the Guidelines for Design and Construction of Hospitals and companion volumes for outpatient and residential facilities, updated on a roughly four-year cycle. The FGI Guidelines are the single most consequential document for support-space design because they are adopted by reference in roughly two-thirds of U.S. states and by federal accreditation pathways, which gives them the force of code where adopted.

For support and logistics, FGI governs:

• Sterile processing department (SPD/CSPD) layout — the required separation of decontamination, preparation/packaging, sterilization, and sterile storage; one-directional flow from dirty to clean; pass-through equipment and physical barriers between the soiled and clean sides.
• Central supply and bulk storage — clean and soiled holding, cart storage, and minimum clearances.
• Environmental services — soiled-utility and clean-utility room requirements, housekeeping rooms, and waste/linen handling spaces.
• Food and nutrition services — dietary department program elements and their relationship to the health code.
• Loading dock and receiving — receiving, breakdown, and the back-of-house circulation that keeps clean and soiled material separated.