Part of Infrastructure hosting standards for the NHS
Appendix B: Environment specific expectations
The table below shows environment specific expectations for relevant stakeholders from sections 1 to 4.
This table is currently intended for an internal audience only. If required a full version of the contents could be produced for an external audience in a later version.
Standard 1.1
Environment specific expectations
- acute or large hospital sites: dual power feeds, UPS + generator minimum
- community and mental health sites: UPS required; generator recommended for critical clinical services
- primary care: UPS for essential equipment; generator not typically required unless clinical risk dictates
- Co‑lo or cloud hosting: provider must evidence equivalent or higher power resilience
Standard 2.1
Environment specific expectations
- acute and large sites: electronic access control and logging are strongly recommended
- community and mental health sites: controlled access appropriate to building use
- primary care: lockable rooms or cabinets sufficient for smaller hosting footprints
- co‑lo or cloud hosting: providers must demonstrate equivalent controls
Standard 2.2
Environment specific expectations
- acute or critical environments: suppression recommended due to clinical dependency on hosted services
- community / primary care: validated detection required; suppression based on risk assessment
- co‑lo / external data centres: providers must evidence compliant fire safety systems
Standard 3.1
Environment specific expectations
- acute or high‑criticality sites: fully enclosed racks with controlled access; seismically secured where required
- community or primary care: secure wall‑mounted or floor racks appropriate to footprint
- co‑lo or data centre facilities: provider must evidence compliant rack installation and maintenance standards
Standard 3.2
Environment specific expectations
- acute or large environments: structured cabling plant should support high‑density hosting without airflow obstruction
- community or primary care: simplified structured cabling suitable for smaller installations
- Co‑lo or hosting providers: must demonstrate structured cabling that meets or exceeds NHS expectations
Standard 3.3
Environment specific expectations
- acute sites: provision for high‑density hosting, resilient layout design and future scaling
- community or primary care: appropriately sized comms/hosting spaces to avoid equipment sprawl
- co‑lo or hosted: provider must evidence sufficient resilient capacity and expansion options
Standard 4.1
Environment specific expectations
- acute or high‑dependency services: multi‑node, high‑availability hosting architectures wherever technically and financially proportionate
- community or primary care: simplified resilience appropriate to lower‑risk workloads
- Co‑lo or cloud: providers must evidence equivalent or higher levels of architectural resilience
Standard 4.2
Environment specific expectations
- acute sites: strong preference for active‑active or active‑passive architectures for critical services
- community or primary care: HA only required for systems where clinical risk assessment identifies dependency
- cloud or hosted environments: contracts must guarantee availability equivalent to NHS operational expectations
Last edited: 17 June 2026 5:45 pm