Code of Massachusetts Regulations
220 CMR - DEPARTMENT OF PUBLIC UTILITIES
Title 220 CMR 26.00 - Security Deposits and Late Payment Charges Applicable to Non-residential Customers
Section 26.05 - Customer Information

All deposit requirements by a company shall be set forth in writing. Such writing shall contain the amount of the deposit required and the basis for the amount. Where the commencement of service is not conditional upon payment in part or in full of the required deposit, the deposit requirement notification may be made initially by means other than writing, provided, however, that such notification is confirmed in writing containing the required information within ten days after the initial deposit request by a company. The format of the writing shall be approved by the Department prior to use by a company.