1. a) A licensed plumber shall inspect every sprinkler system installed by an irrigation contractor to ensure that the provisions of the Act have been met and that the system works mechanically.
2. b) A licensed plumber shall make the physical connection between a sprinkler system and a backflow prevention device.

3. c) A licensed plumber shall also make the connection between a lawn sprinkler system and a backflow prevention device at a golf course.

   Number of Employees Authorized to Install or Supervise the Installation of Lawn Sprinkler Systems	Number of Licensed Plumbers Employed or Contracted with by Irrigation Contractor
   7 or less	at least 1
   8-12	at least 2
   13-20	at least 3
   21-28	at least 4
   29-35	at least 5
   36 or more	at least 6

Irrigation contractors shall employ or enter into a contract with one or more licensed plumbers, who shall be responsible for the installation of every lawn sprinkler system installed after the effective date of this Part, according to the following: