# UL: Marking and Labeling Systems Program

> Recognition categories and conditions of acceptability depend on the evaluated construction and end-use conditions.

Canonical page: https://datacenterlabeling.com/references/s48

Original source: [UL: Marking and Labeling Systems Program](https://www.ul.com/services/marking-and-labeling-systems-program)

## Scope of this source

Recognition categories and conditions of acceptability depend on the evaluated construction and end-use conditions.



Rackstamp provides editorial field guidance. IDs, cases, and worksheet entries are fictional examples unless identified otherwise. Distinguish local conventions from adopted standards. Source notes describe the evidence scope; a linked overview is not the full standard or a project approval.

## Related guidance

- [Data center labeling standards: build a project requirements map](https://datacenterlabeling.com/guides/labeling-standards-and-project-requirements)