O'Brian Tarping Systems, Wilson, N.C., has named Paul Rosencrans vice president of sales.

Heil Environmental Industries, Chattanooga, Tenn., has promoted Dan Rosen to lead the company's product management team.

Vecoplan, High Point, N.C., has named Jeff Wolfe regional manager of its solid waste division.

Joe Liello has been promoted to senior engineer of RMT Inc., Brookfield, Wis. in its solid waste division.

David Hernandez has been appointed certification coordinator for the Solid Waste Association of North America (SWANA), Silver Spring, Md.

Waukesha Engine, Waukesha, Wis., has appointed Joseph Lange eastern regional manager, power generation sales.

Terry Mennen has assumed duties as director of sales for vocational accounts at Hendrickson, Woodridge, Ill., and Sean Coleman is now director of sales, OEM truck products.