NGTL applied to the NEB on 24 March for permission to build and operate the 21 km long Sundre Crossover project. If approved, the project would deliver sweet natural gas from the Edson Mainline and Edson Mainline Loop downstream to connections on the existing NGTL system. The estimated capital cost of the project is approximately CAN$99 million.

NGTL applied to the NEB under section 58 of the National Energy Board Act. In general, these types of applications do not require a public hearing. However, given the elevated level of public interest in this project, the NEB has decided to hold a hearing in order to consider the input of those who could be directly affected or who have expertise to share.