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Flameproofing Certificate. 
The Fire Department of New York (FDNY) maintains that a Flameproofing Affidavit is good for one year from the date of application. However, it is important to note that if any of the treated materials are washed or dry-cleaned, the affidavit will be...
http://flameproofingnyc.weebly.com/index.html
added by nm2001, 4 months 28 days ago
