{float:right|width=425px|background=papayawhip|border=2px solid #708090}{color:black} To improve the quality and utility of GHG data EPA has established guidelines for standardizing corporate parent names.  As a first step EPA has established a pick list of existing corporate parents.  The following 4 steps were taken standardize the names of on the pick list including:  
*1)* Names were standardized and research was conducted to verify the name submitted was the highest-level of the  company in the U.S. 
*2)* For GHG reporters who also report to the Toxics Release Inventory (TRI), standardized names were sourced from the TRI parent company database. 
*3)* For the sectors covered  by the GHG reporting program only, parent companies were derived from internet research. 
*4)* The  List of Parent Companies with local government agencies (e.g., city, town, county government) was removed.
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