WASHINGTON — Boeing is expected to receive support from Congress to push back the upcoming due date for implementing a new safety regulation for its upcoming variants of  the 737 MAX series jets.

Earlier this month, Congress rejected including an exemption to the defense bill that would impose a higher safety level for contemporary cockpit alerts on two new Boeing 737 MAX versions.

Also read: Congress rejects including an exemption to defense bill for two new 737 MAX variants

Last week, Boeing Commercial Airplanes Chief Executive Stan Deal said the U.S. planemaker would continue to push Congress to pass legislation for the Boeing 737 MAX 7 and MAX 10 to win certification even if a key Dec. 27 deadline passes.

"We're still working obviously and hope something happens this year - got another shot early next. We're going to hope Congress does their part of this," Deal said on Dec. 13 during the sidelines of an event at its 787 final assembly plant.

Boeing has been intensely lobbying for months to convince lawmakers to push back the Dec. 27 deadline, which would risk its MAX 7 and MAX 10 certifications and cause significant delays in the introduction of the aircraft to service. The new safety requirements were imposed by the U.S. Congress in 2020 after two fatal 737 MAX crashes, which killed 346 people in Indonesia and Ethiopia.

U.S. Senator Maria Cantwell proposed mandating equipping existing and upcoming 737 MAX variants with an enhanced angle of attack (AOA) and a means to shut off stall warnings and over-speed alerts. Faulty data from a single sensor that erroneously triggered a software function called MCAS to repeatedly activate played a key role in the fatal 737 MAX crashes.

According to sources familiar with the matter, Congressional leaders have agreed to attach the extension to a bill to fund U.S. government operations. The bill is expected to pass in the coming days.

Last month, acting FAA Administrator Billy Nolen said he believed the Agency could not go on with any certification work for 737 MAX-7s and -10s after Dec. 27 without the approval of Congress.