220 CMR 50.00 - 99.00

Uniform System of Accounts for Gas Companies

Uniform System of Accounts for Electric Companies

Uniform System of Accounts for Water Companies

Procedures for the Determination of Violations of Codes Adopted by the Department of Public Utilities Pertaining to the Safety of Pipeline Facilities and the Transportation of Gas and for Enforcement of Said Codes; Minimum Safety Standards for Liquefied Natural Gas Facilities; Minimum Safety Standards for Gas Piping Systems

The Preservation of Records of Electric, Gas and Water Utilities

Voting Trust Certificates of Public Utilities

Accounting Treatment of Investment Tax Credit for Utilities

Annual Return Form to be Filed by Gas and Electric Companies and Municipal Lighting Plants

Procedures for the Determination and Enforcement of Violations of M.G.L. c. 82, §§ 40 through 40E ("Dig Safe")