Can I apply for the new provisional waiver even if I am 21 and over but protected by "grandfathered" law?

I came to the country when I was 10 and never left the country. I am currently 28..my parents became permanent resident under my uncles file...however I did not get mine because I turned 21 when their visa date became current. However I was grandfathered at the time our I 130 was approved. My question now is Can I apply for the new Waiver provisional law that takes affect on March 4th, now that my parents are citizen? I had mixed answers from people around. Thank you in advance