65- 407 C.M.R. ch. 140, § 3

Current through 2024-25, June 19, 2024
Section 407-140-3 - INFRASTRUCTURE MAPS
A. Requirement to File Infrastructure Maps. All utilities subject to the requirements of this Chapter (except T&D utilities that provide service only on offshore islands) with facilities in Maine must develop and maintain current maps showing the key infrastructure used or available for use by the utility for the production, transport, transmission, and distribution of services in Maine. Infrastructure maps must incorporate key infrastructure attributes defined in this Chapter. Utilities must prepare as many infrastructure maps as needed to include their entire service area in Maine. Maps must be filed in both paper and electronic (GIS) form as provided in § 3(C) below.
B. Single-Line Diagrams. If a utility does not have geographically-located data for certain infrastructure lines, it may file a map that shows the lines between its geographically-located midpoints and endpoints as representational point-to-point lines, in lieu of geographically-located lines.
C. Required Filings; Number of Copies. Utilities must file two copies of infrastructure maps with the Commission for informational purposes by April 1 of each year (subject to initial filing requirements in § 3(F) below), to reflect infrastructure in place as of December 31 of the previous year. Utilities must also file two copies of the maps in electronic form unless waived in advance by the Director of Technical Analysis for good cause shown. If no changes to the information reflected in the last maps filed with the Commission have been made during the quarter, utilities may file a statement to that effect in lieu of maps.
D. Inter-Utility Interconnection. Infrastructure maps must clearly identify and show the locations of all service interconnections with other similar utilities and with wholesale and interstate suppliers and carriers, including competitive suppliers and Internet service providers.
E. Public Availability. Infrastructure maps and data filed pursuant to this Chapter will initially be treated as "confidential" pursuant to 35-A M.R.S.A. §1311-B. The Commission will subsequently determine what information should continue to be treated as confidential under §1311-B. To be protected from release, all confidential infrastructure maps and data must plainly be designated as "CONFIDENTIAL MATERIAL PURSUANT TO MPUC RULES, CH. 140" in a filing cover letter, clearly marked on all paper copy maps and other information sheets filed, and on electronic media labels. Upon filing any confidential material in electronic form, the utility filing such information shall provide a separate list of each filename included in the filing that the utility considers confidential.

Utilities filing infrastructure information must provide redacted versions that reflect such information that the utility believes can be publicly released without compromise to the security of its facilities. Such non-confidential versions must be clearly marked as REDACTED. The Commission may release the redacted information to the public on request.

Pursuant to 35-A M.R.S.A. §1311-B(1), the Commission may on its own motion determine that certain infrastructure information is confidential for security reasons. Upon such a determination, the Commission will mark the affected information accordingly.

F. Filing Schedule; Transitional Requirements
1. Phase I. Investor-owned T&D utilities, ILECs, IXCs, gas utilities, and water utilities that serve over 5,000 customer accounts in Maine must file:
a. transmission infrastructure maps beginning July 1, 2002 and by April 1 of each year thereafter, and
b. distribution infrastructure maps and key infrastructure attributes by April 1, 2004 and by April 1 of each year thereafter, except that gas utilities must file distribution infrastructure maps and key infrastructure attributes by July 1, 2002 and by April 1 of each year thereafter.
2. Phase II. Consumer-owned T&D utilities except T&D utilities serving only on offshore islands, CLECs designated as ETCs, and water utilities that serve over 3,000 customer accounts in Maine but are not included in Phase I above, must file by April 1 of each year:
a. transmission infrastructure maps beginning April 1, 2006, and
b. distribution infrastructure maps and key infrastructure attributes beginning April 1, 2009.
3. Phase III. Water utilities that serve over 1,000 customer accounts in Maine but are not included in Phases I or II above must file by April 1 of each year:
a. transmission infrastructure maps beginning April 1, 2009, and
b. distribution infrastructure maps and key infrastructure attributes beginning April 1, 2012.
4. Phase IV. Water utilities that serve over 250 customer accounts in Maine but are not included in Phases I, II, or III above must file by April 1 of each year:
a. transmission infrastructure maps beginning April 1, 2012, and
b. distribution infrastructure maps and key infrastructure attributes beginning April 1, 2015.
5. Phase V. All water utilities not included in Phases I, II, III, or IV above must file by April 1 of each year:
a. transmission infrastructure maps beginning April 1, 2015.
b. distribution infrastructure maps and key infrastructure attributes beginning April 1, 2018.
6. Customer Accounts. For the purposes of this section, the number of a utility's customer accounts will be the number that exists as of December 31 of the calendar year prior to the date on which a filing is required.
G. No Changes to Infrastructure. After the initial filings prescribed in § 3(F) above, any utility that has not made any changes that would reflect in changes to the infrastructure maps and key infrastructure attributes previously filed may file a letter to that effect in lieu of annual filings of maps and attributes.
H. Changes to Infrastructure. Notwithstanding any initial implementation dates prescribed in § 3(F) above, as of January 1, 2002, any utility subject to this Chapter that conducts any major construction project for improvement, replacement, or expansion, with a project infrastructure of more than $500,000 during any calendar year, must collect georeferenced data about that new or improved infrastructure and provide applicable infrastructure maps and key infrastructure attributes on April 1 of the following year and each subsequent year.

65- 407 C.M.R. ch. 140, § 3