who decide to use the silicosis dust fund in worker compensation case.?

An occupational disease claim is a very complex workers' compensation claim. I suggest you contact a workers' comp attorney licensed in MI to advise you in this case. Also, you should make sure you have filed the proper form with the Michigan Workers Compensation Agency to toll the statute of limitation. Generally, the statute of limitation for an occupational disease claim starts running upon diagnosis of the disease. However, since I am not licensed in MI, you should seek advice from a MI attorney.