and/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing, vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. Ability to Install, repair, and replace pipes, valves, potable and non-potable water systems, drainage, waste vents, basins, tubs, faucets, showers, grease traps, lavatories, sinks, traps, flushometers, urinals, drinking fountains, hydrants, water heaters, dishwashers, back flow devices, water pressure, regulators, and other plumbing fixtures and equipment.