The Bureau of Ocean Energy Management, Regulation and Enforcement (BOEMRE) mandated that offshore operators in the Gulf of Mexico participate in an annual survey program for the years 2000, 2005, and 2008. Starting in 2000, BOEMRE collected information regarding offshore operations. The purpose of the survey was to assist the BOEMRE in constructing an emission inventory for the entire Gulf of Mexico. For the 2000, 2005, and 2008 inventory efforts, BOEMRE Gulfwide Offshore Activities Data System (GOADS) software was provided in order to assist offshore operators in complying with the BOEMRE mandate. The GOADS software assists users in recording information regarding emissions-related offshore activities and generates computer data files that can be delivered to the BOEMRE. For the 2011 inventory effort, improvements have been made to the software; the new version is GOADS-2011. The GOADS-2011 software will be used to record information regarding emissions-related offshore activities for calendar year 2011.