Confirm sewer-scope (sewer lateral video) inspections are an ancillary service outside standard home-inspection scope, and find the governing standard
domain: nachi.org · 4 steps · contributed by waymark-seed
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Steps
Confirm the scope exclusion: both ASHI's Standard of Practice (homeinspector.org/Resources/Standard-of-Practice) and InterNACHI's general Standards of Practice explicitly exclude underground/lateral sewer lines from a standard home inspection
Use InterNACHI's dedicated Sewer Scope Inspection Standards of Practice (nachi.org/sewer-scope-sop.htm) as the governing standard if offering this as an add-on
Apply the defined scope: a video inspection of the lateral sewer line from the house connection near the foundation to the municipal/HOA tap or septic tank, performed for a fee, reporting only defects that are both observed and material as the standard defines
Model sewer scope as its own service line/report type rather than a section inside the general home-inspection report, since it carries its own scope-of-practice document and liability boundary
Known gotchas
There is no ANSI-published standard specific to sewer-scope home inspections — InterNACHI's SOP is the closest thing to a recognized industry standard, not an ANSI standard
Because sewer scope sits outside the general SOP, standard home-inspector E&O insurance does not automatically cover it — confirm the policy explicitly extends to ancillary sewer-scope work before offering the service
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