IICRC S540 Standard for Trauma and Crime Scene Cleanup

The ANSI-approved consensus standard describing how trauma and crime scene remediation should be performed. First edition 2017, second edition 2023. It is a voluntary industry standard, not a government licence.

What kind of thing this is

IICRC S540 Standard for Trauma and Crime Scene Cleanup is a credential in this field. This definition comes from a standards body or an industry institution rather than from government. That makes it authoritative about practice and silent about legal obligation — a distinction worth keeping when a company cites it.

Where you will meet it

You will meet this on a company website, usually as a badge and rarely with a name attached to it. The question that turns it into information is who holds it — a credential belongs to a person or to a company, and the two are not interchangeable.

Why the wording matters

This site defines terms in under forty words wherever it can, and attaches the practical consequence rather than leaving it implied. A definition that tells you what something is, without telling you what follows from it, is trivia at a moment when nobody has room for trivia.