Tuesday, February 03, 2026

Karpaf Applications: A Presentation at the 2025 OU City Eruv Conference


You can find all the presentations from the 2025 and past years at: https://www.ou.org/city-eruv-conference/media/

2 comments:

  1. Congratulations on receiving the award mentioned at the beginning of the video—it is certainly well deserved!

    Your talk at this conference was fascinating.

    In the video, you show the letter you provided for a Chabad Eruv, in which you write that it is approved based on the Divrei Malkiel. You also explain very clearly why an eruv built on such a leniency must explicitly state that fact in the approval letter.

    My question is as follows. I have the second edition of your sefer, and on page 98, footnote 196, you write that according to Rabbi Lange, one may rely on the opinion of the Divrei Malkiel only "b'dochak gadol". You then add—referencing an earlier footnote—that it is difficult to identify such extenuating circumstances in modern times in a standard community setting. My impression, perhaps erroneous, was that you concurred with this view.

    Were there additional or unique extenuating circumstances in thet particular case of the Chabad eruv that justified relying on the Divrei Malkiel, or has your view on this issue changed since the publication of the sefer, or perhaps I misunderstood and you never agreed with that position in the first place?

    Thank you very much for the clarification.

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    Replies
    1. Often, when Chabad puts up an eruv, they are trying to save people from Chillul Shabbos who will be carrying anyway. That is an extenuating circumstance.

      I think that if the letter spells out that a leniency is being deployed, that also is a mitigating circumstance.

      Yes, I intentionally changed the language from extenuating to mitigating.

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