Re:USCIS Will Temporarily Suspend Premium Processing for All...
by i0exception on Friday March 03, 2017 @07:36PM
(#13788321)
This is not against the law. If your visa is current, you can start working as soon as you get the receipt notice for the new H-1B application https://www.murthy.com/2011/06/27/h1b-faqs/
EDIT: Thanks everyone for clearing it out. Looks like it's allowed and documented here: https://www.murthy.com/2011/06/27/h1b-faqs/ (Ques. 5). Not an official USCIS link though.