To decommission an on-site sewage disposal system such as a cesspool or septic tank, a decommissioning permit is required
You do not need a plumbing permit for repairing, replacing or maintaining existing and accessible parts, appliances or appurtenances (plumbing related equipment that does not require water, such as a toilet seat)
Hiring a contractor
All contractors working in the state of Oregon must be licensed by Oregon’s Construction Contractors Board (CCB). The CCB requires licensed contractors to provide their license number on all of their company materials. The CCB maintains records on licensed contractors and about any claims filed against them. Contact the CCB at (503) 378-4621 or get help with a contractor query at www.ccb.state.or.us.
All plumbing contractors must be licensed by the Oregon State Plumbing Board (PB). Call the PB at (503) 373-1268.