Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock () or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

High Expansion Foams

High Reliability Organizations

High Rise Buildings

Search our library’s catalog with this term

Organizations that succeed in avoiding catastrophes or failures under circumstances where normal accidents are expected due to risk factors and complexity.

Used for:

  • HROs

Related:

Broad Terms:

Search again