---
kind: "unit"
title: "10"
title_heading: "Energy"
key: "chII/subchD/part431/subpartX"
level: "subpart"
label: "Subpart X"
heading: "Small Electric Motors"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/10/chII-subchD-part431-subpartX"
sections_count: 8
---

# Subpart X — Small Electric Motors

Title 10 C.F.R. — Energy › Chapter II — Department of Energy › Subchapter D — Energy Conservation › Part 431 — Energy Efficiency Program for Certain Commercial and Industrial Equipment

## Sections

- [§431.441. Purpose and scope.](/cfr/10/431.441.md)
- [§431.442. Definitions.](/cfr/10/431.442.md)
- [§431.443. Materials incorporated by reference.](/cfr/10/431.443.md)
- [§431.444. Test Procedures for the measurement of energy efficiency of small electric motors.](/cfr/10/431.444.md)
- [§431.445. Determination of small electric motor efficiency.](/cfr/10/431.445.md)
- [§431.446. Small electric motors energy conservation standards and their effective dates.](/cfr/10/431.446.md)
- [§431.447. Department of Energy recognition of nationally recognized certification programs.](/cfr/10/431.447.md)
- [§431.448. Procedures for recognition and withdrawal of recognition of certification programs.](/cfr/10/431.448.md)