Every small investor-owned telephone utility shall be subject to Chapters 1 (§ 56-1 et seq.), 2 (§ 56-49 et seq.), 10 (§ 56-232 et seq.), 10.1 (§ 56-265.1 et seq.), 10.3 (§ 56-265.14 et seq.) and 15 (§ 56-458 et seq.) of this title, except that the obligations of small investor-owned telephone utilities as to tariff filings shall be defined by this chapter. Small investor-owned telephone utilities shall also be subject to Chapters 3 (§ 56-55 et seq.) and 4 (§ 56-76 et seq.) of this title when they have affiliated interests as defined in § 56-76.