Los Angeles encourages voluntary evaluation of pre-Northridge welded steel moment-frame buildings through LADBS Information Bulletin P/BC 2017-026, applying SAC-FEMA 350 series guidance. Some commercial leases and lender covenants make inspection effectively mandatory in Class A office space.
After the 1994 Northridge earthquake fractured many welded beam-to-column connections in steel moment-frame buildings, the SAC Joint Venture published FEMA 350 through 354 evaluation and repair guidance. Los Angeles has not yet adopted a citywide retrofit ordinance for steel moment frames, but LADBS Information Bulletin P/BC 2017-026 sets the local protocol for any voluntary inspection: random ultrasonic testing of pre-1995 connections, ASCE 41-17 Tier 2 evaluation, and reporting to the Department. Many lenders and major tenants now require an SB-1953 style structural review at lease renewal, so building owners often pursue inspection and partial retrofit even without a mandate.
Without a citywide mandate, enforcement is limited. Inspection failures usually surface in commercial diligence, prompting lender hold-backs, retrofit conditions, or insurance loadings rather than LADBS code violations.
Los Angeles, CA
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See how Los Angeles's steel moment-frame retrofit rules stack up against other locations.
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