A. The BCIS announces a cutoff date once the annual quota is reached. Petitions filed before the cutoff date, but after the quota has been used up, will be held for processing the following October. Petitions ted after the cutoff date will be returned to the petitioner without consideration.
link: http://www.workpermit.com/us/us_h1b_faq.htm
link: http://www.workpermit.com/us/us_h1b_faq.htm