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subparagraph (3)(C), shall be the number of Rep-
resentatives responding to that call of the House.
‘‘(2) If a Representative counted in determining the
provisional number of the House thereafter ceases to be
a Representative, or if a Representative not counted in
determining the provisional number of the House there-
after appears in the House, the provisional number of
the House shall be adjusted accordingly.
‘‘(3) For the purposes of subparagraph (1), the
House shall be considered to be without a quorum due
to catastrophic circumstances if, after a motion under
clause 5(a) of rule XX has been disposed of and without
intervening adjournment, each of the following occurs in
the stated sequence:
‘‘(A) A call of the House (or a series of calls
of the House) is closed after aggregating a period
in excess of 72 hours (excluding time the House is
in recess) without producing a quorum.
‘‘(B) The Speaker—
‘‘(i) with the Majority Leader and the Mi-
nority Leader, receives from the Sergeant-at-
Arms (or his designee) a catastrophic quorum
failure report, as described in subparagraph
(4);
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‘‘(ii) consults with the Majority Leader
and the Minority Leader on the content of that
report; and
‘‘(iii) announces the content of that report
to the House.
‘‘(C) A further call of the House (or a series
of calls of the House) is closed after aggregating a
period in excess of 24 hours (excluding time the
House is in recess) without producing a quorum.
‘‘(4)(A) For purposes of subparagraph (3), a cata-
strophic quorum failure report is a report advising that
the inability of the House to establish a quorum is at-
tributable to catastrophic circumstances involving nat-
ural disaster, attack, contagion, or similar calamity ren-
dering Representatives incapable of attending the pro-
ceedings of the House.
‘‘(B) Such report shall specify the following:
‘‘(i) The number of vacancies in the House and
the names of former Representatives whose seats
are vacant.
‘‘(ii) The names of Representatives considered
incapacitated.
‘‘(iii) The names of Representatives not inca-
pacitated but otherwise incapable of attending the
proceedings of the House.
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‘‘(iv) The names of Representatives unac-
counted for.
‘‘(C) Such report shall be prepared on the basis of
the most authoritative information available after con-
sultation with the Attending Physician to the Congress
and the Clerk (or their respective designees) and perti-
nent public health and law enforcement officials.
‘‘(D) Such report shall be updated every legislative
day for the duration of any proceedings under or in reli-
ance on this paragraph. The Speaker shall make such
updates available to the House.
‘‘(5) An announcement by the Speaker under sub-
paragraph (3)(B)(iii) shall not be subject to appeal.
‘‘(6) Subparagraph (1) does not apply to a proposal
to create a vacancy in the representation from any State
in respect of a Representative not incapacitated but oth-
erwise incapable of attending the proceedings of the
House.
‘‘(7) For purposes of this paragraph:
‘‘(A) The term ‘provisional number of the
House’ means the number of Representatives upon
which a quorum will be computed in the House
until Representatives sufficient in number to con-
stitute a quorum among the whole number of the
House appear in the House.