Versions of Nebraska Statutes 76-2320.02. Use of plastic or nonmetallic underground facilities; installation requirements on LawServer 2023 Nebraska Statutes 76-2320.02. Use of plastic or nonmetallic underground facilities; installation requirements 2022 Nebraska Statutes 76-2320.02. Use of plastic or nonmetallic underground facilities; installation requirements 2021 Nebraska Statutes 76-2320.02. Use of plastic or nonmetallic underground facilities; installation requirements 2019 Nebraska Statutes 76-2320.02. Use of plastic or nonmetallic underground facilities; installation requirements