Our main data source for cases approved daily is Official iCert Portal. Information about daily approved cases comes from the iCert registry search page.
In addition to this the Office of Foreign Labor Certification (OFLC), allows the public to access the latest quarterly and annual disclosure data in easily accessible formats for the purpose of performing in-depth longitudinal research and analysis through OFLC Performance Data. It contains all disclosure data sets are saved in the Microsoft Excel (.xls) file format with approved, denied and withdrawn cases. Each data set is cumulative, containing unique records identified by the applicable OFLC case number. Since we get daily approvals from iCert registry search page, we use the disclosure data for obtaining quarterly denied and withdrawn cases only.