‘Billionaire Carl Icahn will advise Donald Trump on rescinding what the activist investor called “excessive regulation” on U.S. businesses, the president-elect’s transition team announced on Wednesday.

Icahn will serve as a special adviser, not a federal employee, and he will not have specific duties, Trump’s team said in a statement. He will not take a salary, a transition aide said.

The pick could draw scrutiny because Icahn, whose major investments include insurer American International Group (AIG, +0.09%) and oil refining business CVR Energy, could help shape rules meant to police Wall Street and protect the environment.

In the transition team statement released on Wednesday, Icahn said it was time to “break free of excessive regulation” and let businesses create jobs.’

Read more: Trump appoints yet ANOTHER corporate billionaire to oversee deregulated corporate free-for-all