49 CFR § 596.4 - Definitions.

---
identifier: "/us/cfr/t49/s596.4"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 596.4 - Definitions."
title_number: 49
title_name: "Transportation"
section_number: "596.4"
section_name: "Definitions."
chapter_name: "NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
part_number: "596"
part_name: "AUTOMATIC EMERGENCY BRAKING TEST DEVICES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 322, 30111, 30115, 30117 and 30166; delegation of authority at 49 CFR 1.95."
regulatory_source: "89 FR 39793, May 9, 2024, unless otherwise noted."
cfr_part: "596"
---


# 596.4 Definitions.

All terms defined in section 30102 of the National Traffic and Motor Vehicle Safety Act (49 U.S.C. chapter 301, *et seq.*) are used in their statutory meaning.

*Adult pedestrian test mannequin (APTM)* means a test device with the appearance and radar cross section that simulates an adult pedestrian for the purpose of testing automatic emergency brake system performance.

*Child pedestrian test mannequin (CPTM)* means a test device with the appearance and radar cross section that stimulates a child pedestrian for the purpose of testing automatic emergency brake system performance.

*Pedestrian test device(s)* means an adult pedestrian test mannequin and/or a child pedestrian test mannequin.

*Pedestrian test mannequin carrier* means a movable platform on which an adult pedestrian test mannequin or child pedestrian test mannequin may be attached during compliance testing.

*Vehicle test device* means a test device that simulates a passenger vehicle for the purpose of testing automatic emergency brake system performance.

*Vehicle test device carrier* means a movable platform on which a lead vehicle test device may be attached during compliance testing.