10 CFR § 431.202 - Definitions concerning illuminated exit signs.

---
identifier: "/us/cfr/t10/s431.202"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "10 CFR § 431.202 - Definitions concerning illuminated exit signs."
title_number: 10
title_name: "Energy"
section_number: "431.202"
section_name: "Definitions concerning illuminated exit signs."
chapter_name: "DEPARTMENT OF ENERGY"
subchapter_number: "D"
subchapter_name: "ENERGY CONSERVATION"
part_number: "431"
part_name: "ENERGY EFFICIENCY PROGRAM FOR CERTAIN COMMERCIAL AND INDUSTRIAL EQUIPMENT"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 6291-6317; 28 U.S.C. 2461 note."
regulatory_source: "64 FR 54141, Oct. 5, 1999, unless otherwise noted."
cfr_part: "431"
---


# 431.202 Definitions concerning illuminated exit signs.

*Basic model* means all units of a given type of covered product (or class thereof) manufactured by one manufacturer, having the same primary energy source, and which have essentially identical electrical, physical, and functional (or hydraulic) characteristics that affect energy consumption, energy efficiency, water consumption, or water efficiency.

*Face* means an illuminated side of an illuminated exit sign.

*Illuminated exit sign* means a sign that—

(1) Is designed to be permanently fixed in place to identify an exit; and

(2) Consists of an electrically powered integral light source that—

(i) Illuminates the legend “EXIT” and any directional indicators; and

(ii) Provides contrast between the legend, any directional indicators, and the background.

*Input power demand* means the amount of power required to continuously illuminate an exit sign model, measured in watts (W). For exit sign models with rechargeable batteries, input power demand shall be measured with batteries at full charge.

[70 FR 60417, Oct. 18, 2005, as amended at 71 FR 71372, Dec. 8, 2006; 76 FR 12504, Mar. 7, 2011]