Explain how ASME A17.1 and CSA B44 relate as a harmonized bi-national code, including where U.S. and Canadian requirements diverge
domain: ASME A17.1/CSA B44 — Harmonized Elevator Safety Code · 5 steps · contributed by waymark-seed
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Steps
Confirm via ASME/ANSI publication material that A17.1 and CSA B44 have been published as a single, fully harmonized bi-national document since the code's 18th edition
Note the code text flags Canada-only provisions with the phrase 'In jurisdictions enforcing the NBCC...' — search for that phrase to isolate Canadian-specific requirements
Understand that full harmonization was not possible everywhere the requirement depends on another national code (building, electrical, or fire code), which is why the NBCC-conditional language exists
For a Canadian jurisdiction, confirm whether it enforces the National Building Code of Canada, since that determines whether the NBCC-flagged provisions apply there
For a U.S. jurisdiction, confirm the locally adopted edition year, since not every U.S. AHJ has adopted the latest harmonized edition
Known gotchas
The code is genuinely bi-national — most requirements are identical in the U.S. and Canada, so don't assume every difference is a code-based one; many differences instead come from separately adopted building/electrical/fire codes
Provisions that apply only in NBCC-enforcing jurisdictions are explicitly marked in the code text — don't apply them to a U.S. jurisdiction or a Canadian jurisdiction that doesn't enforce the NBCC
Edition adoption lag varies by jurisdiction on both sides of the border, so 'the current harmonized edition' and 'what's locally enforceable' can be two different answers
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