The Plumbers, Pipefitters & Mechanical Equipment Service of United Association Local 392 has jurisdiction over 5 counties in Ohio, 4 counties in Indiana & 11 counties in Kentucky.

The Ohio Counties are:

• Brown & Vicinity thereof
• Butler
• Clermont
• Hamilton
• Warren
  

The Indiana Counties are:

• Dearborn
• Ohio
• Ripley
• Switzerland
  

The Kentucky Counties are:

• Boone
  
• Bracken
  
• Campbell
  
• Carroll
  
• Gallatin
  
• Grant
  
• Kenton
  
• Mason
  
• Owen
  
• Pendleton
  
• Robertson