USCIS has started the data entry process for H-1B petitions selected in the lottery. Premium processing cases are being handled first and data entry for those cases should be completed by April 15. As previously announced, the 15-day premium processing clock will start on April 15.
Data entry for non-premium processing cap cases will begin after the premium processing cases are entered. Data entry for non-premium cases will likely not be completed until sometime in May, and rejection notices for petitions not selected in the lottery will be sent out after that.
When the H-1B cap was reached on the first day in 2008, USCIS did not complete data entry and issue receipt notices until late in May. Non-premium processing cases can only be converted to premium processing after a receipt notice is issued.