a. Specially designed to have any of the following: 1. Rated for operation at an ambient temperature below 228 K (–45 °C) or above 358 K (85 °C); or Note: 4A001.a.1. does not control computers specially designed for civil automobile, railway train or “civil aircraft” applications. 2. Radiation hardened to exceed any of the following specifications: a. Total Dose 5 × 10 3 Gy (silicon); b. Dose Rate Upset 5 × 10 6 Gy (silicon)/s; or c. Single Event Upset 1 × 10 –8 Error/bit/day; Note: 4A001.a.2. does not control computers specially designed for “civil aircraft” applications. b. Not used.

Last Updated: April 11, 2026

a. Specially designed to have any of the following: 1. Rated for operation at an ambient temperature below 228 K (–45 °C) or above 358 K (85 °C); or Note: 4A001.a.1. does not control computers specially designed for civil automobile, railway train or “civil aircraft” applications. 2. Radiation hardened to exceed any of the following specifications: a. Total Dose 5 × 10 3 Gy (silicon); b. Dose Rate Upset 5 × 10 6 Gy (silicon)/s; or c. Single Event Upset 1 × 10 –8 Error/bit/day; Note: 4A001.a.2. does not control computers specially designed for “civil aircraft” applications. b. Not used.

Code

4A001

EU Code

M13A1

Subcategory

4A - Systems, Equipment and Components

Prohibited Supply To

Authority

Document

EU Regulation No 267/2012

Note

Analogue computers, digital computers or digital differential analysers, designed or modified for use in the systems specified in 1.A., having any of the following characteristics:a) Rated for continuous operation at temperatures from below –45 °C to above +55 °C; orb) Designed as ruggedised or “radiation hardened”.

Program information

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