Oregon Revised Statutes Occupations and Professions § 701.348

(1) Every person offering to undertake or undertaking construction of building sewer piping shall comply with the requirements of ORS chapter 701.

(2) Every person submitting a bid or a written estimate of the costs to construct building sewer piping shall provide to potential customers, prior to an agreement to perform, the following:

(3) Any person licensed under ORS 701.021 may install a building sewer after obtaining a permit for plumbing inspection under ORS 447.095.

(4) As used in this section, “building sewer” means that part of the system of drainage piping that conveys sewage into a septic tank, cesspool or other treatment unit that begins five feet outside the building or structure within which the sewage originates.