1. Definitions: As used in this section, the following terms shall have the following meanings:

1. (a) "Owner" means and includes the owner or owners of the freehold of the premises or lesser estate therein, mortgagee or vendee in possession, assignee of rents, receiver, executor, trustee, lessee, agent, or any other person, firm or corporation, directly or indirectly in control of a dwelling.
2. (b) "Shared meter" means any utility meter that measures gas, electric or steam service provided to a tenant's dwelling and also measures such service to areas outside that dwelling and such tenant pays charges for the service to areas outside the dwelling measured through such meter.
3. (c) "Dwelling" means any building or structure or portion thereof which is occupied in whole or in part as the home, residence or sleeping place of one or more human beings, including any equipment located outside such building or structure or portion thereof which is under the exclusive use and control of the occupant, and is either rented, leased, let or hired out, to be occupied, or is occupied as the residence or home of one or more human beings.
4. (d) "Utility" means any gas, electric and steam corporation and/or municipality providing service to residential customers.
5. (e) "Shared meter customer" means any tenant who rents a dwelling from an owner that is served by a shared utility meter for which the tenant, rather than the owner, is the utility's customer of record.
6. (f) "Extraordinary cost" means the cost, as determined by a qualified professional, of installing equipment necessary to eliminate a shared meter in a dwelling or portion thereof which is in excess of the amount of rent for four months rental of such dwelling. The commission shall adopt additional rules for determining extraordinary cost based upon whether the amount of service measured by the shared meter that is utilized outside the shared meter customer's dwelling is sufficient to warrant the cost of such installation.
7. (g) "Legal impediment" means a restriction which prevents separate metering, rewiring, or repiping due to zoning ordinances which limit the number or type or location of meters in a building or due to the historical significance of the structure or such other legal restrictions as determined by the commission in its rules.
8. (h) "Shared area charges" means that portion of charges billed to the shared meter customer which remains after excluding the estimated charges for service used by the shared meter customer and where applicable, a third party, for the period during which the owner maintained a shared meter condition in violation of this section or six years whichever is shorter.
9. (i) "Third party involvement" means that a third party whose utility service was to be measured through another meter had caused or benefitted from a shared meter condition.

(b)

1. (i) In the event that a legal impediment or extraordinary cost prevents elimination of a shared meter condition or in the event that the service measured through the shared meter is minimal, under commission rules adopted, pursuant to subdivision eight of this section, the owner, as an alternative to eliminating the shared meter condition, may enter into a mutually acceptable written agreement with the shared meter customer and where applicable, a third party, for apportioning the charges for service measured through the shared meter; provided, however, that the shared meter customer shall pay only for the estimated amount of service provided to the shared meter customer's dwelling, or
2. (ii) In the event that there is an existing written agreement between the owner and the shared meter customer, and where applicable, a third party, for the apportionment of charges for service measured by a shared meter prior to October twenty-fourth, nineteen hundred ninety-one, such agreement will remain in effect, as an alternative to eliminating the shared meter condition or establishing an account in the owner's name, until any lease or rental agreement for the rental of the dwelling expires, provided, however, that the shared meter customer or third party may request the commission or its designee to review the existing written agreement if such shared meter customer or third party believes the terms are unfair or unreasonable. If the commission or its designee finds that the terms of the existing written agreement are unfair or unreasonable, the commission or its designee shall void such agreement and assist the interested parties in negotiating and executing a mutually acceptable written agreement.

(c)

1. (i) In the event that a mutually acceptable written agreement is negotiated and executed, the owner shall provide a copy of the agreement to the utility, the shared meter customer, and where applicable, a third party.
2. (ii) If the interested parties are unable to negotiate a mutually acceptable written agreement, the commission or its designee, upon a complaint by a customer or owner, shall order a remedy, consistent with the relief provided in this section, as it deems proper. The commission or its designee shall have the authority to apportion estimated charges for service measured by a shared meter among the owner, shared meter customer and any third party.
3. 3. The provisions of this section: (a) may not be waived by an owner, tenant, or utility; and
4. (b) shall not affect the validity of a lease or rental agreement in effect on or before the effective date of this section. For purposes of this section, renewals and extensions of leases and rental agreements that commence after the effective date of this section shall be deemed to be new leases and rental agreements.
5. 4. Determination of shared meter condition. (a) Upon a customer's verbal or written complaint that a shared meter is measuring service to the customer's dwelling and that the customer is responsible for the charges for such service or upon receipt of other information indicating that a shared meter may exist, a utility shall notify the owner in writing of the owner's responsibilities under this section, that a complaint was received or information obtained that a shared meter may exist, and that the utility is required to conduct an investigation. If such utility is not the utility in ownership or control of the meters and related pipes, fittings, wires and other apparatus associated with the establishment and measurement of service to such customer's dwelling, notice shall also be provided to such metering utility. Upon the request of an owner or upon a complaint by a customer or upon receipt of information indicating that a shared meter may exist, such metering utility shall investigate and determine whether such service is or is not measured by a shared meter. Such metering utility may determine if separate metering or rewiring or repiping is possible and shall provide the owner with information describing how shared meter conditions can be eliminated. The investigation shall include, but not be limited to, conducting appropriate tests, an examination of wiring, piping, meters and heating equipment in the building as may be needed, an estimate of gas, electricity or steam used in the shared meter customer's dwelling and in areas outside the dwelling, and a review of billing records.
6. (b) The determination shall be provided in writing, within thirty business days of the date of the complaint or receipt of information or owner's request, to the customer, the owner, any other tenants receiving service measured by the shared meter, and any other utility providing service to such customer through such meter. Such written determination shall include a description of the specific areas outside the dwelling served by the shared meter, the nature of the uses of the service, and the proportional amount of service registered on the shared meter that is provided to the shared meter customer's dwelling and to areas outside the dwelling. A notice shall be included with the determination informing the recipients of the availability of the commission's complaint handling procedures, and providing the department's address and telephone number for filing objections to such determination.
7. (c) Failure of an owner to provide access to any common area in the building or to cooperate with any reasonable request made by the investigating utility shall result in a determination that the customer's dwelling is served by a shared meter, specifying the owner's action that such utility understood to be a failure to cooperate. Failure of a customer making a shared meter complaint to provide access to a dwelling controlled by the customer or to cooperate with any reasonable request made by the investigating utility shall cause the utility to suspend the investigation and to notify in writing the customer and the owner that the investigation is suspended, specifying the customer's action that such utility understood to be a failure to cooperate. A utility duly acting under this paragraph is entitled to make the determinations provided for and shall be held harmless from any subsequent monetary claim by an owner that the dwelling was not served by a shared meter or by a shared meter customer that the dwelling was served by a shared meter.
8. (d) Any customer filing a complaint under this section or owner who disagrees with a utility's determination may utilize the commission's complaint handling procedures to obtain a written departmental determination by complaining to the department within forty-five days after receipt of the utility's determination. In the event that the utility fails to provide a determination on a complaint under this section within the required time period, the department shall investigate, upon the shared meter customer's or owner's request, and issue a written determination. The commission or its designee shall have the authority to apportion estimated charges for service measured by a shared meter among the owner, shared meter customer and any third party.

9. 5. Change in billing. Notwithstanding any inconsistent provision of law, one hundred twenty days after notice is sent to the owner that the utility or the department has made a final determination that the shared meter customer's dwelling is served by a shared meter in violation of subdivision two of this section:

   1. (a) the utility shall verify that, pursuant to subdivision two of this section, the owner has eliminated the shared meter condition or has entered into a mutually acceptable written agreement with the shared meter customer and where applicable, a third party, for apportioning the charges for service measured by the shared meter and has provided a copy to the utility, or, as an alternative to eliminating the shared meter condition, has established a separate account in the owner's name as the customer of record for all applicable shared area charges and all future service measured by the shared meter;
   2. (b) if the owner has not eliminated the shared meter or entered into such agreement or established such account or if the amount of the service is not minimal under commission rules adopted pursuant to subdivision eight of this section, the utility shall establish an account in the owner's name as the customer of record for service measured through the shared meter and bill the owner for all applicable shared area charges and all future service measured through the shared meter; provided, however, that the commission or its designee may grant an extension not to exceed ninety days to an owner if, in its judgment, extenuating circumstances beyond an owner's control prevented timely compliance, or such shared meter is the subject of an ongoing department review regarding the apportionment of estimated charges pursuant to subparagraph (ii) of paragraph (c) of subdivision two of this section;
   3. (c) the utility shall refund to the customer or cancel shared area charges; provided, however, that when third party involvement exists, the utility shall credit the shared meter customer for all the estimated charges of the third party;
   4. (d) when such determination follows a customer complaint regarding a shared meter condition or a utility discovery of a shared meter condition that is not in response to an owner's request for a utility inspection for a shared meter condition, with respect to utility service billed after December first, nineteen hundred ninety-six, the utility shall comply with the provisions of paragraphs (a), (b) and (c) of this subdivision, and further bill the owner and refund to the shared meter customer an estimated amount of charges for twelve months of all service measured by the shared meter; provided, however, that this paragraph shall not apply to a shared meter condition if service measured through the shared meter is minimal under commission rules adopted pursuant to subdivision eight of this section. An owner so billed may petition the commission or its designee for a determination that the amount of such bill is excessive and that such bill and refund be adjusted accordingly; provided, however, neither the adjusted bill nor the adjusted refund shall be less than twenty-five percent of the total amount of the original bill. The commission is authorized to make such a determination and adjustment if it finds that a bill and refund of twelve months' charges is unduly burdensome and unfair. In making such determination the commission or its designee shall consider the total amount of the bill and refund in relation to the shared area charges over such twelve month period and any other equitable factors established by the commission; and
   5. (e) the utility shall bill the third party, when third party involvement exists, instead of the owner, for the applicable estimated charges for service used by the third party credited by the utility to the shared meter customer.
10. 6. Refunded and cancelled utility charges. (a) No owner may bill a shared meter customer or otherwise recover from such customer any portion of the cancelled charges or charges refunded to such customer and shall not bill such customer for any portion or percentage of any future shared meter bills in the owner's name; provided, however, that this section shall not preclude an owner from increasing future rents by a specific sum to the extent otherwise permitted by law.
11. (b) A shared meter customer who receives a refund from a utility pursuant to this section shall return a proportional share of that refund to each person who had paid that shared meter customer for utility service associated with the payment so refunded. The utility shall be held harmless from the claim of any person for a share of any payment so refunded.
12. 7. Remedies. Where the owner or shared meter customer demonstrates the existence of third party involvement, the owner or shared meter customer shall be entitled respectively to recover the charges billed by the utility to the owner's account, or to the shared meter customer's account, pursuant to this section in a civil action against the third party in a court of competent jurisdiction.
13. 8. Minimal service. Notwithstanding any provision of this section to the contrary, the commission shall determine an appropriate quantity of service on a shared meter that is utilized outside of the shared meter customer's dwelling which is to be considered minimal in commission rules and regulations.
14. 9. Notice requirements. On or before December first, nineteen hundred ninety-five, every utility shall notify its residential customers and each owner served by the utility of the requirements of this section. Each utility may request from its customers the names and addresses of the owners or recipients of rent for dwellings occupied by the customers or obtain such names and addresses from any available public records in order to provide the notice required by this subdivision. Such notice shall be mailed in a postpaid wrapper under separate cover than bills for service to the premises. Every utility shall also provide notice at least annually to owners of dwellings, to the extent practicable, under a plan submitted by the utility and approved by the department. Every utility shall also implement an outreach program subsequent to such written notice. Each utility shall submit a plan to provide notice within sixty days of the effective date of this subdivision. In addition, every utility shall notify each of its customers at least annually, of the requirements that apply to owners, shared meter customers and utilities pursuant to this section and shall include the department's address and phone number for questions and complaints. In addition, each utility may arrange for the publication of notices in newspapers or the broadcasting in other media of notices describing such requirements. The notices shall be subject to the approval of the department.
15. 10. Treatment of refunds. (a) Where, as of the effective date of this subdivision, an owner of a building consisting of one to five dwelling units has been billed for service measured through a shared meter without an apportionment of charges for service used by the shared meter customer and, where applicable, a third party, the utility shall refund to the owner, upon the written request of the owner, any charges which represent service used in the shared meter customer's dwelling and, where applicable, a third party. Such written request must be submitted no later than December first, nineteen hundred ninety-seven, provided that an owner may petition the commission or its designee for an extension upon a finding that such owner has not received timely or adequate notice of the availability of such refund. In any case where an owner has been billed but has not paid for such service, the utility shall only collect from the owner shared area charges. The utility shall not attempt to charge the shared meter customer or the third party for any monies refunded to the owner pursuant to this section.
16. (b) In any case where a shared meter customer is entitled, following a final determination of shared meter condition prior to the effective date of this subdivision, to a refund but has not received such refund because the owner has not made payments for which the owner was billed, such shared meter customer shall receive his or her refund from the utility.
17. (c) Notwithstanding any other provision of this section, in the case where a shared meter customer is entitled, following a final determination of a shared meter condition, to a refund or cancellation of shared meter charges and title to the dwelling has been transferred to a new owner, such shared meter customer shall receive his or her refund from the utility for charges for service measured through a shared meter, excluding the estimated charges for service used in the shared meter customer's dwelling, for the period of time effective six years prior to the discovery of or determination that a shared meter condition exists, or the first day of the tenancy, or the date the shared meter condition began, whichever is most recent in time.
18. (d) The commission shall investigate whether and to what extent refunds provided pursuant to this subdivision were made necessary by inadequate notice to customers regarding the provisions of this section.
19. 11. Other relief. Notwithstanding any other provision of this section, the rights of a utility customer under this article to seek and obtain relief for payments made for service not provided to his or her dwelling shall not be diminished in any manner. Unless otherwise specified in this section, the rights of a utility to collect payment for service rendered but unpaid shall not be diminished in any manner.
20. 12. Apportionment. The commission shall establish guidelines for estimating the amount of utility use in other space outside the shared meter customer's dwelling and for apportioning costs required by this section.