The Department of State (DOS) posted the Visa Bulletin for April 2018, which provides the visa number availability (green cards) for family-sponsored and employment-sponsored preference categories, as well as for the diversity visa lottery cut-offs. USCIS has not announced that in April 2018 it will accept adjustment of status applications based on the filing dates chart for family-based cases and the final action dates chart for employment-based cases.
The following information is the for the final action dates chart. The EB1 category remains current for the worldwide category but has backlogged to January 1, 2012 for China and India. The EB2 category for India is at December 22, 2008, and for China August 1, 2014. The EB3 worldwide category remains current and the EB3 category for China is at June 1, 2015, and at October 1, 2008, for India.