We currently work only on lawn maintenance. we are expanding into landscaping, more in particular, the Sod sales and Installation aspect. the questions that I have is: is Sod Sales and Installation regulated by the Fed. Government under Landscaping architecture? or my occupational license is enough? Also, can I sub-contract a Fert. & weed control company to do the initial application is their license enough or do I need to get another license for that as well?