<SEC-DOCUMENT>0001193125-18-142850-index.html : 20180430 <SEC-HEADER>0001193125-18-142850.hdr.sgml : 20180430 <ACCEPTANCE-DATETIME>20180430153404 ACCESSION NUMBER: 0001193125-18-142850 CONFORMED SUBMISSION TYPE: DEF 14A PUBLIC DOCUMENT COUNT: 17 CONFORMED PERIOD OF REPORT: 20180712 FILED AS OF DATE: 20180430 DATE AS OF CHANGE: 20180430 EFFECTIVENESS DATE: 20180430 FILER: COMPANY DATA: COMPANY CONFORMED NAME: ARMSTRONG WORLD INDUSTRIES INC CENTRAL INDEX KEY: 0000007431 STANDARD INDUSTRIAL CLASSIFICATION: PLASTICS PRODUCTS, NEC [3089] IRS NUMBER: 230366390 STATE OF INCORPORATION: PA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: DEF 14A SEC ACT: 1934 Act SEC FILE NUMBER: 001-02116 FILM NUMBER: 18789263 BUSINESS ADDRESS: STREET 1: 2500 COLUMBIA AVE CITY: LANCASTER STATE: PA ZIP: 17603 BUSINESS PHONE: 7173970611 MAIL ADDRESS: STREET 1: 2500 COLUMBIA AVE CITY: LANCASTER STATE: PA ZIP: 17603 FORMER COMPANY: FORMER CONFORMED NAME: ARMSTRONG CORK CO DATE OF NAME CHANGE: 19800611 </SEC-HEADER> <DOCUMENT> <TYPE>DEF 14A <SEQUENCE>1 <FILENAME>d502828ddef14a.htm <DESCRIPTION>DEF 14A <TEXT> Document 1 - file: d502828ddef14a.htm
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