Rabbi Aryeh Lebowitz

Over here we see, according to Beis Hillel, Kriya Shema, you're not allowed to be makbid on Amida.

You just have to be as is.

Well, if you're not makbid on Amida, then you're not makbid on...

on Atifa either.

And therefore, Kriya Shema, there's a good argument to be made, does not require Atifa.

The Taz in Ar Chayim Simuchas quotes a Medrash that describes that HaKadosh Baruch Hu told Bnei Yisrael that he doesn't burden Klal Yisrael with saying Shema while standing on their feet and with their heads uncovered like you would normally have to do when you're reading like a major declaration of a king or something like that.

But, however you are, you come as is to Kriya Shema.

Sitting, standing, with Atifa, without Atifa, it's all good.

So, Rav Shechter always quotes from the Rav, in the name of Rav Chaim Salveitchik, in the name of his grandfather.

that he would wear his talus with atifa for Kaddish and for Baruch Hu and Kedusha, but he would take it off of his head for Kriya Shema, and then do atifa again for Shemona Esrei.

So when it came time after Yishtabach for Kaddish and Baruch Hu, he had his talus over his head, he'd have his talus over his head again for Shemona Esrei, but in between it fell off.

he would definitely take it off during Kriya Shema as a fulfillment of another reason Rav Shechter points out to take the towels off your head during Kriya Shema is in order to expose the Tfilin Shal Rosh and the Kesher of the Tfilin Shal Rosh because the Gemara Menachem says and Rav Lazar Hagadol says so it's supposed to be the Tfilin Shal Rosh it's supposed to be visible

And L'chaora, the same would apply to Kriyas HaTorah, because Kriyas HaTorah is equated with Kriyashma when it comes to Atifa, because the...

You don't need a midah during Kriya Shema because Kol Adom Korik Adarko.

So the Drosha Vesilil says that any Shevach that's in the form of a Pasuk, not only Kriya Shema, any other Shevach in the form of a Pasuk, would also not require a midah and therefore not require a Tifa.

So that's why you're allowed to sit during Kriya Satorah and you don't need a Tifa during Kriya Satorah, even though Kriya Satorah is a Dovah Shabbat Kedushah.

How do I know it's a Dovah Shabbat Kedushah?

Because you need a minion for it.

So it's a Dovah Shabbat G'dushah.

So apparently a Dovah Shabbat G'dushah requires Amidah and Atifah, and that's defined as a Shevach of a Kodesh Baruch Hu that the Tzibor offers that's not in the form of a Bracha or a Pasuk.