# Division 2 — Certification marks and hazardous-area classifications: cross-market equivalences

For Division 2, market / system is NEC and CEC; stated equivalent is Zone 2 / Zone 22, verified against its source on 2026-08-11.

- **Designation:** Division 2 _(verified: appears in the quote below)_
- **Market / system:** NEC and CEC _(verified: appears in the quote below)_
- **Stated equivalent:** Zone 2 / Zone 22 _(verified: appears in the quote below)_

## What the source says

> NEC and CEC* ATEX and IEC Definitions General CA Class II Division 1 & 2 US Class III Division 1 & 2 FM 3600 Con nuos A place in which an explosive atmosphere is Requirements Division 1 Zone 0 / Zone 20 CA Class III Division 1 & 2 hazard con nually present Ex US Zone 20, 21, 22 ISA 60079-0 Dust Igni on Proof (DIP) US Class II Division 1 UL 1203 Intermittent A place in which an explosive atmosphere is Division 1 CSA C22.2 No. 25 Division 1 Zone 1 / Zone 21 CA Class II hazard likely to occur in normal opera on Dust Protected (NI) US Class II Division 2 ISA 12.12.01 / FM 3611 Hazard under A place in which an explosive atmosphere is CA Class II Division 2 CSA C22.2 No. 25 abnormal Division 2 Zone 2 / Zone 22

## Source

- https://www.euroswitch.com/wp-content/uploads/euroswitch-hazardous-area-guide_V6.pdf

Last verified: 2026-08-11. Review by: 2027-08-11.
Part of [Certification marks and hazardous-area classifications: cross-market equivalences](https://referencesource.org/certification-standards-equivalence/).