Code of Maine Rules › 65 - DEPARTMENT OF PUBLIC UTILITIES COMMISSION › 407 - PUBLIC UTILITIES COMMISSION › Chapter 140 - UTILITY SERVICE AREA AND INFRASTRUCTURE MAPS › Section 407-140-3 - INFRASTRUCTURE MAPS

Current through 2024-29, July 17, 2024
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.