(a) All volunteers, full and part time, are subject to the prohibitions on expenditure of federal funds for partisan and nonpartisan electoral activities, voter registration activities and transportation of voters to the polls, and efforts to influence the passage or defeat of legislation, as contained in section 403 of the Act.(b) Full time volunteers, and certain part time volunteers as specified herein, are also subject to the restrictions in subchapter III, chapter 73 of title 5, United States Code, commonly referred to as the Hatch Act, as provided in section 415(b) of the Act.