Upscale Corporate and Personal Transportation. Lincoln Town Car sedans, fully insured, certified, and licensed. All cars are black, smoke-free, and Homeland Security compliant. Emerald/Amherst Limousine Service provides private, 24 hour a day, 7 days a week (including holidays), door-to-door service to all airports, piers, and train stations. We also provide transportation for long distance trips and non-emergency medical transportation to hospitals and doctors' offices.