The following provides a resource of information for applying for a Tennessee contractor’s license. A good start is by reviewing and printing the application package .When do I need a permit for plumbing work? Where do I get a permit for plumbing work? How do I get an inspection? Planning to do plumbing work on your one or two .The Contractors State License Board CSLB protects California consumers by licensing and regulating the state’s construction industry. CSLB was established in .Maryland requires Statewide Licensing for Home Improvement, Electrical, HVAC and Plumbing Contractors. To work as a Commercial Contractor you must register with the .