# UL 864: Control Units and Accessories for Fire Alarm Systems

> The product standard covering control units and accessories used in fire alarm systems. Certification to UL 864 is issued by an accredited Nationally Recognized Testing Laboratory following evaluation and testing of a specific product.

- Designation: UL 864
- Issuing organization: UL Standards & Engagement (standard); certification issued by an accredited NRTL
- Edition: UL 864 is issued in numbered editions with revisions. DataRemote's certification references UL 864:2014 Ed.10 with revisions through 07 May 2020.
- Jurisdictions: United States
- Last reviewed: July 29, 2026

## Scope

Applies to fire alarm control units and accessories, including equipment in the transmission path between a control unit and a supervising station. Certification is granted per product and per configuration evaluated, not to a product line.

## Key considerations

### The standard and the certifier are different things

UL 864 is a standard published by UL Standards & Engagement. Certification against it is performed by an accredited NRTL. DataRemote's UL 864 certification is issued by Intertek via an Authorization to Mark, so the certifying body is Intertek and the standard is UL 864.

### Certification is not required for POTS replacement

UL 864 certification is not a prerequisite for a POTS replacement device. DataRemote pursued it voluntarily so installers have documented certification when a device carries fire alarm panel communications.

### Scope is per product

A certification covers the exact models and configurations named in the certifier's record. It does not extend automatically to other models in the same family.

### Certification is not installation compliance

A certified product used incorrectly does not produce a compliant installation. The AHJ evaluates the installed system.

"UL 864 certified" is precise only when it names the certifying laboratory and the models
covered. The standard is published by UL Standards & Engagement; the certification is issued
by an accredited NRTL — for DataRemote, Intertek.

## Frequently asked questions

**Who certifies UL 864 compliance?**

An accredited Nationally Recognized Testing Laboratory. DataRemote's UL 864 certification is issued by Intertek Testing Services NA under an Authorization to Mark, referencing UL 864:2014 Ed.10+R:07May2020.

**Is UL 864 required to replace a fire alarm POTS line?**

No. It is not a requirement for POTS replacement equipment. It provides documented third-party evaluation that installers and AHJs can rely on, which is why DataRemote obtained it voluntarily.

**Which DataRemote models are UL 864 certified?**

Coverage is per model and is listed on the UL 864 certification page, with the Intertek report numbers for each. Only models with a supplied Authorization to Mark are shown.

## Official sources

- [UL 864 Standard for Control Units and Accessories for Fire Alarm Systems](https://www.shopulstandards.com/ProductDetail.aspx?productId=UL864) — UL Standards & Engagement
- [Intertek Directory of Listed Products](https://www.intertek.com/marks/etl/directory-of-listed-products/) — Intertek

## Compliance disclaimer

Applicability depends on the jurisdiction, the code edition adopted locally, the specific configuration and installation, and the determination of the authority having jurisdiction (AHJ). No product can guarantee compliance on its own — compliance is a property of the installed system. Confirm requirements with your AHJ and a qualified designer before relying on any statement here.


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Canonical page: https://dataremote.com/newsroom/standards/ul-864
Organization: DataRemote, Inc. — POTS line replacement, cellular failover, and fixed wireless access solutions. https://dataremote.com