Carrying is absolutely forbidden

The ruling he signed on 2 Iyar 5776 leaves no practical uncertainty: “It is absolutely forbidden to carry on Shabbos in the streets of Crown Heights.” It adds that the structure then being advertised was to be treated as nonexistent.

The ruling was issued as a public instruction, not a theoretical discussion of whether individual components of the route might be repaired. Until a valid eruv was established under the proper halachic authority, residents were to observe Shabbos as before and not carry.

Read the ruling in full

The local Beis Din is responsible

The dispute soon turned from the physical route to the authority of the local Rabbonim. Rabbi Schwei signed the Sivan letters stating that matters affecting the whole neighborhood belong to the Beis Din charged with its halachic affairs.

That principle is especially clear with an eruv. It gives a public assurance that people may carry, while its continuing validity depends on construction, legal arrangements, inspection, repair, and notice. A private group cannot assume that responsibility over the objection of the mara d'asra.

Read the letter in full

His position remained part of the local psak

After Rabbi Schwei's passing, the later Beis Din notice named him together with the other Crown Heights Rabbonim who had categorically rejected the eruv. The notice did not announce a new standard; it repeated the same prohibition already stated in his signed ruling.

His part in the Crown Heights record is therefore direct: he signed the first public prohibition and the letters establishing the Beis Din's responsibility for the neighborhood.