What is blanket L petition?

Employers who regularly file L petitions may file for a blanket L petition in order to obtain continuing approval for itself (and some or all of its parents, branches, subsidiaries and affiliates in the U.S.). This simplifies the process of approving and admitting additional individual L-1A and L-1B workers. After approval of a blanket petition, the petitioner may file for individual employees to enter as L-1 professionals under the blanket petition.