Comparison of U.S. and Canadian division certification documents
Applicable certification documents for Class I, Division 1 and 2
| Area | Protection methods | Applicable certification documents | |
| U.S. | Canada | ||
| Division 1 | Explosion-proof Equipment | ||
| -- Enclosures | UL1203 | CSA-30 | |
| -- Electric Motors and Generators | UL674 | CSA-145 | |
| -- Industrial Control Equipment | UL698 | CSA-30 | |
| -- Portable Electric Lighting Units | UL781 | CSA-137 | |
| -- Electric Flashlights and Lanterns | UL783 | CSA-157 | |
| -- Electric Heaters | UL823 | CSA-30 | |
| -- Electric Lighting Fixtures | UL844 | CSA-137 | |
| -- Circuit Breakers and Enclosures | UL877 | CSA-30 | |
| -- Outlet Boxes and Fittings | UL886 | CSA-30 | |
| -- Switches | UL894 | CSA-30 | |
| -- Electrically Operated Valves | UL1002 | CSA-30 | |
| -- Receptacle-Plug Combinations | UL1010 | CSA-159 | |
| -- Sewage Pumps | UL1207 | CSA-145 | |
| -- MC Cables and Sealing Fittings | UL2225 | CSA-174 | |
| -- Other | UL 1203 | CSA-30 | |
| Intrinsically Safe (2 fault) Equipment | UL913 | CSA-157 | |
| Purged/Pressurized (Type X or Y) Enclosures | NFPA496 | NFPA496 | |
| Division 2 | Hermetically Sealed Enclosures | UL1604 | CSA-213 |
| Nonincendive Circuits | UL1604 | CSA-213 | |
| Nonincendive Components | UL1604 | CSA-213 | |
| Nonincendive Equipment | UL1604 | CSA-213 | |
| Non-Sparking Devices | UL1604 | CSA-213 | |
| Purged (Type Z) Enclosures | NFPA496 | NFPA496 | |
| Sealed Devices | UL1604 | CSA-213 | |
| Any Class I, Division 1 method |
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| Any Class I, Zone 0, 1 or 2 method | UL2279 | CSA-E79 | |
Applicable certification documents for Class II, Division 1 and 2
| Area | Protection methods | Applicable certification documents | |
| U.S. | Canada | ||
| Division 1 | Dust-Ignition-Proof Equipment | ||
| -- Enclosures | UL1203 | CSA-25* | |
| -- Motors and Generators | UL674 | CSA-145 | |
| -- Industrial Control Equipment | UL698 | CSA-25* | |
| -- Portable Electric Lighting Units | UL781 | CSA-137 | |
| -- Electric Flashlights and Lanterns | UL783 | CSA-157 | |
| -- Electric Heaters | UL823 | CSA-25* | |
| -- Electric Lighting Fixtures | UL844 | CSA-137 | |
| -- Circuit Breakers and Enclosures | UL877 | CSA-25* | |
| -- Outlet Boxes and Fittings | UL886 | CSA-25* | |
| -- Switches | UL894 | CSA-25* | |
| -- Electrically Operated Valves | UL1002 | CSA-25* | |
| -- Receptacle-Plug Combinations | UL1010 | CSA-159 | |
| -- MC Cables and Sealing Fittings | UL2225 | CSA-174 | |
| -- Other | UL1203 | CSA-25 | |
| Intrinsically Safe Equipment | UL913 | CSA-157 | |
| Pressurized Enclosures | NFPA496 | NFPA496 | |
| Division 2 | Dusttight Enclosures | UL1604 | CSA-157 |
| Nonincendive Circuits | UL1604 |
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| Nonincendive Components | UL1604 |
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| Nonincendive Equipment | UL1604 |
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| Pressurized Enclosures | NFPA496 | NFPA496 | |
| Any Class II, Division 1 method |
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*Note: As an alternative to this publication, CSA-E1241-1-1 can be used.
Applicable certification documents for Class III, Division 1 and 2
| Area | Protection methods | Applicable certification documents | |
| U.S. | Canada | ||
| Division 1 | Dust tight Enclosures | UL1604 | CSA-157 |
| Intrinsically Safe Equipment | UL913 | CSA-157 | |
| Division 2 | Dust tight Enclosures | UL1604 | CSA-157 |
| Intrinsically Safe Equipment | UL913 | CSA-157 | |
