(a) The authority shall regulate the provision of telecommunications services in the state in a manner designed to foster competition and protect the public interest.

(b) Notwithstanding the provisions of § 16-19, the following telecommunications services shall be deemed competitive services: (1) A telecommunications service offered on or before July 1, 1994, by a certified telecommunications provider and a wide area telephone service, “800” service, centrex service or digital centrex service offered by a telephone company, (2) a telecommunications service offered to business customers by a telephone company, (3) a home office service offered by a telephone company, and (4) a telecommunications service provided by a telephone company to a residential customer who subscribes to two or more telephone company services, including basic local exchange service, any vertical feature or interstate toll provided by a telephone company affiliate. Unless reclassified pursuant to this section, any other service offered by a telephone company on or before July 1, 1994, shall be deemed a noncompetitive service, provided such initial classification shall not be a factual finding that such service is noncompetitive. Notwithstanding subdivision (3) of subsection (c) of § 16-247b, prior to January 1, 2010, a telephone company shall not obtain a waiver from the authority of the pricing standard set forth in subdivision (1) of subsection (c) of § 16-247b for any service reclassified as competitive pursuant to subdivision (2), (3) or (4) of this subsection.

(c) On petition, on its own motion, or in conjunction with a tariff investigation conducted pursuant to subsection (f) of this section, after notice and hearing, and within ninety days of receipt of a petition or its motion or within the time period set forth in subsection (f) of this section, as applicable, the authority may reclassify a telecommunications service as competitive, emerging competitive or noncompetitive, in accordance with the degree of competition which exists for that service in the marketplace, provided (1) a competitive service shall not be reclassified as an emerging competitive service, and (2) the authority may extend the period (A) before the end of the ninety-day period and upon notifying all parties to the proceedings by thirty days, or (B) in accordance with the provisions of subsection (f) of this section, as applicable.

(d) In determining whether to reclassify a telecommunications service, the authority shall consider:

(1) The number, size and geographic distribution of certified telecommunications providers of the service, provided the authority shall not reclassify any service as competitive if such service is available only from a telephone company or an affiliate of a telephone company that is a certified telecommunications provider;

(2) The availability of functionally equivalent services in the relevant geographic area at competitive rates, terms and conditions, including, but not limited to, services offered by certified telecommunications providers, providers of commercial mobile radio services, as defined in 47 C.F.R. § 20.3, voice over Internet protocol providers and other services provided by means of alternative technologies;

(3) The existence of barriers to entry into, or exit from, the relevant market;

(4) Other factors that may affect competition; and

(5) Other factors that may affect the public interest.

(e) Except for those tariffs for services offered or provided to business retail end users for which a certified telecommunications provider or a telephone company elects to be exempt from filing or maintaining pursuant to subsection (h) of this section, each certified telecommunications provider and each telephone company shall file with the authority a new or amended tariff for each competitive or emerging competitive intrastate telecommunications service authorized pursuant to § 16-247c. A tariff for a competitive service shall be effective on five days’ written notice to the authority. A tariff for an emerging competitive service shall be effective on twenty-one days’ written notice to the authority. A tariff filing for a competitive or emerging competitive service shall include (1) rates and charges which may consist of a maximum rate and a minimum rate, (2) applicable terms and conditions, (3) a statement of how the tariff will benefit the public interest, and (4) any additional information required by the authority. A telephone company filing a tariff pursuant to this section shall include in said tariff filing the information set forth in subdivisions (1) to (4), inclusive, of this subsection, a complete explanation of how the company is complying with the provisions of § 16-247b and, in a tariff filing which declares a new service to be competitive or emerging competitive, a statement addressing the considerations set forth in subsection (d) of this section. If the authority approves a tariff which consists of a minimum rate and a maximum rate, the certified telecommunications provider or telephone company may amend its rates upon five days’ written notice to the authority and any notice to customers which the authority may require, provided the amended rates are not greater than the approved maximum rate and not less than the approved minimum rate. A promotional offering for a previously approved competitive or emerging competitive tariffed service or a service deemed competitive pursuant to this section shall be effective on three business days’ written notice to the authority.

(f) On petition or its own motion, the authority may investigate a tariff or any portion of a tariff, which investigation may include a hearing. The authority may suspend a tariff or any portion of a tariff during such investigation. The investigation may include, but is not limited to, an inquiry to determine whether the tariff is predatory, deceptive, anticompetitive or violates the pricing standard set forth in subdivision (1) of subsection (c) of § 16-247b. Not later than seventy-five days after the effective date of the tariff, unless the party filing the tariff, all statutory parties to the proceeding and the authority agree to a specific extension of time, the authority shall issue its decision, including whether to approve, modify or deny the tariff. If the authority determines that a tariff filed as a new service is, in fact, a reclassification of an existing service, the authority shall review the tariff filing as a petition for reclassification in accordance with the provisions of subsection (c) of this section.

(g) The provisions of this section shall not prohibit the authority from ordering different tariff filing procedures or effective dates for an emerging competitive service, pursuant to a plan for an alternative form of regulation of a telephone company approved by the authority in accordance with the provisions of § 16-247k.

(h) On and after July 1, 2016, any certified telecommunications provider or telephone company may, upon written notice to the authority, elect to be exempt from any requirement to file or maintain with the authority any tariff for services offered or provided to business retail end users. A certified telecommunications provider or telephone company that elects to be exempt from the requirement to file or maintain with the authority any tariff for services offered or provided to business retail end users shall make the rates, terms and conditions for such services available to business retail end users in a clear and conspicuous manner, that is apparent to the reasonable business retail end user, either (1) in a customer service guide, (2) on such certified telecommunications provider’s or telephone company’s Internet web site, or (3) in a contract between such business retail end user and such certified telecommunications provider or telephone company.