From Politico:

Former China Ambassador Jon Huntsman took his first step toward a presidential run Tuesday, creating a federal political action committee that will allow him to travel and raise money in the weeks before he’s expected to formally announce a bid.
Moving swiftly since his return to Washington from Beijing Friday, Huntsman filed paperwork with the Federal Election Committee to begin “H PAC,” an organization that his aides say will be the last placeholder before a full-blown campaign. There will be no testing-the-waters entity or exploratory committee.

Earlier this year, a group of Huntsman supporters started the Horizon PAC, which was described as a “campaign in waiting” for Huntsman, who was not able to make any such moves until after he returned from China.