Scope and Content: Since 1919 the Dept. of Public Utilities has been responsible for regulating Massachusetts gas, electric, water, telecommunications, and transportation utility companies (currently pursuant to MGLA c 25).  It requires annual returns in the form of financial statements from these companies, specifically per St 160, s 242 (railroads), St 161, s 138 (street railways), St 164, s 63 (municipal gas and electric), St 164, 83 (gas and electric), St 165, ss 2, 7 (water), and St 166, s 11 (telephone and telegraph).
Arrangement: Arranged chronologically
Notes: Containers numbered by agency as: 1001-1066, 1073-1077, 1079-1080. –Appendix: Boston Consolidated Gas Company and Old Colony Gas Company, utilities whose annual returns would fall within the scope of this series, although not specified by name in its finding aid, were subsidiaries of Eastern Gas and Fuel Associates, which published the periodical: Associate. Issues from 1946 to 1986 are available in the Archives reference library. For detailed holdings see appendix finding aid
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