EvidenceSheet

DCS-15 Secure Utilities

Utility services such as power, water and telecommunications are protected, monitored, maintained and tested at scheduled intervals to show they continue to work.

Source: CSA CCM v4.1, DCS-15. The statement above is our statement of the clause, read from the published text and cited so you can check it against the official text, not the instrument verbatim. Open CSA CCM v4.1 in the compliance library.

Version 4.1 adds 11 controls (among them API security, log sanitisation and a service bill of materials) and renumbers several domains. CSA accepts v4.0.x during its transition; if your STAR assessment is still on v4.0.1, check the numbering against it.

5
artefacts
1
held by a system
2
at each review
hard
to go live
Vendor register / contract repository
where the evidence lives
teal = a system already holds it · olive = produced at each review. To go live: easy when half or more of the artefacts are already held by a system, moderate from a quarter to a half, hard below a quarter.

These are the artefacts auditors commonly ask for on this requirement, our guidance rather than text from the standard. Your assessor decides what is sufficient in your context, and asks for samples across the period when a report covers one.

system holds itEvidence a system already holds

  • Utility service monitoring and alarm logs · SIEM / log platform

periodic reviewEvidence produced at each review

  • UPS and generator test and load test records · Backup / DR tooling
  • Fuel supply contracts and refuelling records · Vendor register / contract repository

governing documentDocuments that govern the control

  • Maintenance schedules and completed work orders · Document repository
  • Contract terms on utility testing where the customer relies on them · Vendor register / contract repository

First move

Mostly documents and reviews. Pull the 1 system-held artefact from your SIEM / log platform on a schedule; put the documents under version control with an owner and review date, and log each review as a dated record with a named reviewer.

Common gaps auditors find

Do this for your whole sheet

Paste the rows you run your controls from and get this mapping for every control at once, with the periodic-review ones flagged and a first move per row. No account for the first run.

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DCS-14 Environmental Systems · DCS-16 Equipment Location