The visa bulletin is out at this link: March 2020 Visa Bulletin
Employment-based preferences must use the Dates of Filing chart. The employment-based categories are as follows: EB-1 is current for all countries except China (October 1, 2017) and India (March 15, 2017); EB-2 is current for all countries except China (August 1, 2016) and India (July 1, 2009); EB-3 is January 1, 2019, for all countries except China (March 1, 2017) and India (February 1, 2010); EB-3 Other Worker is January 1, 2019, for all countries except China (August 1, 2008) and India (February 1, 2010). EB-4 is current for all countries except El Salvador, Guatemala, and Honduras (August 15, 2016); Religious Worker visas are current for all countries except El Salvador, Guatemala, and Honduras (August 15, 2016); EB-5 non-regional centers are current for all countries except China (December 15, 2015); EB-5 regional centers are current for all countries except China (December 15, 2015).
Family-based petitions are backlogged, however, the F2A category is current in the Final Action Dates. USCIS says that applicants in the F2A category may file using the Final Action Dates Chart for March 2020.