# Review changes and renew service

Lesson 3 of [Manage extinguisher service across sites](https://extinguishers.fyi/academy/manage-extinguisher-service-across-sites.md), 12 minutes.

Review service arrangements when property activities or equipment change. USFA distinguishes ordinary materials, flammable liquids, energized electrical equipment, combustible metals and cooking oils or fats. CCOHS emphasizes selecting appropriate equipment and keeping it accessible in designated pl…

The rest of this lesson is for learners enrolled in the course. [See how Manage extinguisher service across sites works](https://extinguishers.fyi/academy/manage-extinguisher-service-across-sites.md).

Also on the [web page](https://extinguishers.fyi/academy/manage-extinguisher-service-across-sites/review-changes-and-renew-service).