House and Senate negotiators will continue working this week on a compromise transportation bill, with Republicans pushing to include a provision green-lighting the Keystone XL oil pipeline in the final version of the package.

The House-approved version of the bill, which funds road and transit projects, includes the provision approving the pipeline, while the Senate version omits it.

House Transportation and Infrastructure Committee Chairman John Mica (R-Fla.) told reporters Thursday he plans to meet with Senate Environment and Public Works Committee Chairwoman Barbara Boxer (D-Calif.) this week to discuss the bills.

Mica said Republicans have made “great progress” in trying to secure inclusion of the Keystone provision in the final version of the legislation. Sen. John Hoeven (R-N.D.), a vocal proponent of Keystone, predicted that the project would be included in the final agreement.