(b) to approve any by-law or proposed by-law of a municipality, which approval the municipality voluntarily applies for or is required by law to obtain;
(c) to authorize the issue by a municipality, without the assent of the electors, of debentures to pay any floating indebtedness that it may have incurred, upon such terms, in such manner and at such times as the Tribunal may approve, or to direct that the floating indebtedness be paid in such other manner and within such time as the Tribunal may require;
(d) to authorize the issue by a municipality, without the assent of the electors, of debentures to retire debentures that are redeemable before maturity, and the raising of the sum required for payment of the new debentures in the same manner as the sum required for payment of the retired debentures;
(e) to certify to the validity of debentures issued under the authority of any by-law of a municipality that the Tribunal has approved;
(f) to direct that before any approval is given by the Tribunal to the exercise of any powers by a municipality or to any by-law passed by it, or before any authorization is given by the Tribunal to the issue by a municipality of debentures to pay any floating indebtedness, the assent of the electors of the municipality or those who are qualified to vote on money by-laws first be obtained, even though the assent is not otherwise required;
(g) to supervise, where considered necessary, the expenditure of any money borrowed by a municipality with the approval of the Tribunal;
(h) to require and obtain from any municipality, at any time and for any definite period, statements in detail of any of its affairs, financial and otherwise;
(i) to inquire at any time into any or all of the affairs, financial and otherwise, of a municipality and hold hearings and make investigations respecting those affairs as may appear necessary to be made in the interest of the municipality, its ratepayers, inhabitants and creditors and particularly to make and hold inquiries, hearings and investigations for the purpose of avoiding any default or recurrence of a default by any municipality in meeting its obligations;
(j) when authorized by an agreement entered into by two or more municipalities in which the municipalities agree to be bound by the decision of the Tribunal, to hear and determine disputes in relation to the agreement; and
(k) where water or sewage service is supplied or to be supplied by one municipality to another municipality, to hear and determine the application of either municipality to confirm, vary or fix rates charged or to be charged in connection with the water or sewage service.