For the most up to date information visit the MARVAC website The Michigan Association of Recreation Vehicles and Campgrounds (MARVAC) is a division of the Michigan Manufactured Housing, RV and Campground Association (MMH & RVCA), which is a full-service, non-profit, state trade association, representing the manufactured housing, recreation vehicle and private campground industries in the state of Michigan. The MMH & RVCA offers a wide variety of services to aid you in the operation of your business and save you money as well. Services include legal counsel and legislative advocacy, and governmental relations, in-house public relations programs, liability insurance and a clearinghouse of information where members can obtain a wide variety of general and technical publications. The MMH & RVCA is comprised of two divisional organizations (MMHA and MARVAC), with each serving their specific industry’s needs. MMHA and MARVAC have separate boards of directors that represent their respective industries. An executive board, made up of three representatives from each of the two divisional boards, governs the association.