if a job is $1,000 or more
to install rock, plant trees, shrubs and other vegitation and to lay sod.
Under certain conditions, the Residential Recovery Fund provides compensation to single-family homeowners, in the event that they have been damaged by a licensed contractor.
You can check who is licensed by contacting the Nevada Contractors Board.
is required by law and covers medical expenses for employees who become injured on the job (source).
The state of Nevada requires a license to spray for weed control for the company and each individual who is doing the spraying. It is a specific license and is not included in any other license.
The Nevada Department of Agriculture has a PDF on there website about. (NAC and NRS 555).