"On April 9, 2015, USCIS’ Administrative Appeal Office (AAO) issued a precedent decision, Matter of Simeio Solutions, LLC, which held that employers must file amended H-1B petitions when a new Labor Condition Application for Nonimmigrant Workers (LCA) is required due to a change in the H-1B worker’s worksite location. ...
This precedent decision represents the USCIS position that employers are required to file an amended petition before placing an H-1B employee at a new worksite. H-1B petitioners should follow the guidance below. ..." - USCIS, May 21, 2015.