Is an employer obligated to put in short term lay off verification?

I've been layed off for the last 4-6 weeks. Out of those weeks I received unemployment compensation for 3 of the weeks. Because I wasn't fired or let go. I knew that my employer would have to put the short-term layoff verification through. Which would mean I'm exempt from having to do the job seeker/miworks qualifications. Atleast this is what unemployment told me. My company continues to call me for work. Which I have been agreeing to. Am I right about them having to short term verification. Especially if they have me coming in a day or two every other week?