移民局的解釋：中國大陸職業移民第二優先12月排期倒退三年

It has been necessary to retrogress both the China-mainland born and India Employment Second preference cut-off dates. This is a direct result of extraordinarily heavy applicant demand for numbers, primarily by Citizenship and Immigration Services offices for adjustment of status cases. Additional retrogressions cannot be ruled out during the second quarter of the fiscal year.