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which it shall become effective, which date shall not be less than
five (5) days after the date of filing such list; provided, however,
that the first list of prices and terms and conditions of sale filed by
any manufacturer, as above provided, shall take effect on the date
of filing thereof. None of the prices and terms and conditions of
sale shown in any list filed by any manufacturer, as herein provided,
shall be changed except by the filing by such manufacturer with the
District Control Conunittee of a new list of basing point prices and
terms and conditions of sale which shall become effective on the
effective date therein specified, which shall not be less than five (5)
days after the date on which such new price list and terms and condi-
tions of sale shall have been so filed. In case any district shall not
have elected a District Control Committee, then the manufacturers
selling within such district shall file their prices and terms and condi-
tions of sale for such district with the Trade Relations Committee in
the same manner and under the same conditions as those above stated
for filing with the District Control Committees.
 All such price lists and terms and conditions of sale filed with
the District Control Committee shall be immediately distributed
among the manufacturers within the district, and a copy filed with
the Trade Relations Committee and all such price lists and terms
and conditions of sale filed with the Trade Relations Committee
shall be immediately distributed to all manufacturers in the Industry
interested therein.
 In the event that any manufacturer shall not receive sufficient
notice of the filing by any other manufacturer of revisions in such
other manufacturer's prices or terms and conditions of sale, as will
enable him to meet such revisions of such other manufacturer on the
effective date thereof, then if such manufacturer shall file with the
appropriate committee such revisions in his prices and terms and con-
ditions of sale as may be required to meet the revisions filed by such
other manufacturer, within forty-eight hours after receipt of notice
thereof, the revisions so filed by such manufacturer shall become
effective on the same date as the revisions of such other manufac-
turer, or if they be already effective, shall become effective
immediately.
 The failure of any manufacturer to adhere to his prices, terms,
and conditions of sale, filed as herein provided, and any other devi-
ation from the provisions of this section, shall be an unfair method
of competition.
 (d) Reports for the President.-The Trade Relations Committee
shall, prior to the expiration of the four-month period herein below
specified, make to the President a report and recommendations as
to the effect of the basing point and average cost provisions of this
Code upon prices in the industry, upon such other matters as it may
deem pertinent to properly inform the President upon the operations
of this section, and upon such matters as may be requested by the
President or the Administrator.
 The foregoing provisions with regard to basing points and aver-
age costs herein above described are experimental and tentative so
far as this Code is concerned, and shall continue in effect for a period
of four months after the effective date of this Code in order to afford
the President an opportunity to determine upon the recommenda-