The Massachusetts Clean Water Trust (“the Trust”) requests responses from firms that are currently pre-qualified to serve as Underwriter (a “Firm” or “Firms”) for a book-running senior manager and to assist the Trust in its selection of a syndicate for the Series 27 Green and Sustainability Bonds with an expected new money par amount of $400 million. This offering is tentatively scheduled to price in January of 2026 and close in February 2026. The book-running senior manager will be selected based on the Firm’s ability to meet the Trust’s needs and achieve the Trust’s goals, while considering the quality, clarity, and extent of ideas and analyses presented and the experience of the team of individuals committed to the transaction. The Trust intends to select one book-running senior manager, one or more cosenior manager(s), and one or more co-manager(s) from the responding Firms.