Congress has approved a four-month bill that would avert Federal Aviation Administration layoffs and also let the agency resume approving new Airport Improvement Program construction grants.

The last long-term FAA bill lapsed on Sept. 30. The House passed a new multiyear measure in September, but things are stuck in the Senate, prompting a series of short extensions. The stopgap enacted in December did not provide contract authority for AIP, so FAA hasn’t approved new airport grants since Jan. 1.

The new bill, which runs through June 30, cleared the House on Feb. 12 and the Senate the next day. It next goes to the White House. If a new bill isn’t enacted by March 1, the date the previous extension expires, FAA would have to furlough about 4,000 workers.