in which it is in place through a temporary volumetric rate as set out in the applicable rate schedules.

• Temporary Connection Surcharge (TCS) - An economic contribution to financial feasibility of main extension projects made by small volume customers who attach to a Small Main Extension or Customer Attachment Project through a temporary volumetric rate as set out in applicable rate schedules. The TCS is used as an alternative to CIAC to achieve a PI of 1.0, or in addition to CIAC for a project to achieve a minimum PI of 1.0.

3. Accountability

Enbridge Gas manages separate Investment Portfolios and Rolling Project Portfolios for Union North (Rate 01 and 10) and Union South (Rate M1 and M2) rate zones. Excluding Community Expansion Projects, the Rolling Project Portfolio PI for each area must remain above 1.0 and the Net Present Value (“NPV”) must remain greater than $0 at all times.

The Director, Distribution In-Franchise Sales is accountable for ensuring that the corporate Rolling Project Portfolio PI, excluding Community Expansion Projects, exceeds 1.0 on an ongoing basis.

4. Project Acceptance Levels

The Company manages its portfolio approach to achieve a Profitability Index ("PI") of greater than 1.0 as required by the Board under EBO 188.

Individual projects are required to achieve a PI of 1.0 or the customer shall be required to pay a Contribution in Aid of Construction ("CIAC") to bring the project up