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RE: Drift per 1997 UBC

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Fair enough Ben, thanks for clearing up Mr. Hoopers role in this matter.

I guess the question is :

Did the limitation on Eq. 30-7 intentionally get removed because of the zone 4 pulse wave considerations Martin & Mark mentioned, or was it an oversight? Also, can we expect the IBC to follow suit?

I couldn't find anything on this topic in the 1999 Bluebook.