The text in bold gives impression there was a process.

The time period for the U.S. Department of Justice (DOJ) to complete its regulatory investigation of the proposed combination of Alaska Airlines and Hawaiian Airlines under the HSR Act has expired. This is a significant milestone in the process to join our airlines. During the DOJ’s review, Alaska worked closely with the Hawai‘i Attorney General to reinforce and expand upon our commitments for the future of Hawaiian Airlines and to Hawai‘i consumers. These include plans to maintain the Hawaiian Airlines brand and local jobs and continue providing strong service between, to, and from the Islands.

I looked at another example in biotech

Bristol Myers Squibb and RayzeBio Announce Expiration of HSR Act Waiting Period

02/12/2024
PRINCETON, N.J. & SAN DIEGO--(BUSINESS WIRE)-- Bristol Myers Squibb (NYSE: BMY) and RayzeBio, Inc. (Nasdaq: RYZB) today announced the expiration of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, or HSR Act, in connection with Bristol Myers Squibb’s previously announced tender offer to acquire all of the outstanding shares of RayzeBio common stock for a purchase price of $62.50 per share in cash, or approximately $4.1 billion. The expiration of the waiting period occurred at 11:59 p.m. EST on February 9, 2024.

Expiration of the waiting period under the HSR Act satisfies one of the conditions necessary for the consummation of the transaction, including the tender offer and the merger, which remains subject to the tender of a majority of the outstanding shares of RayzeBio’s common stock, as well as other customary closing conditions. Unless the tender offer is extended, the offer will expire one minute after 11:59 p.m. New York City time, on February 22, 2024.

Bristol Myers Squibb Completes Acquisition of RayzeBio, Adding Differentiated Actinium-Based Radiopharmaceutical Platform

02/26/2024