F.A.A. limits self-regulation privileges for Boeing.

The FAA said on Tuesday that it had given Boeing a shorter extension than the company had sought to conduct some of its own regulatory checks as the agency works to reform the practice of outsourcing regulatory authority.

Corporate employees are allowed to determine regulatory compliance on certain matters for the F.A.A. The F.A.A. agreed to only three years of renewal.

The congressionally approved program drew sharp criticism after two crashes of Boeing's Max plane in the last two years killed 343 people and led to a ban of the plane globally for nearly two years. A federal law passed in 2020 made a number of aviation safety changes.

The F.A.A. approved only a three-year renewal because it wanted to make sure that Boeing did not make any changes to the program.

Ian Won, an agency official, said in a letter to the company that the F.A.A. would like to assess work improvements within the Boeing organization over the next three years.

The agency would like to see Boeing better shield employees in the program from interference by company officials, update the company's manual for the program, and conduct audits to make sure a safety management system is in place. The F.A.A planned to track Boeing's progress.

The company said it would work with the changes.

Since the passage of the 2020 law, the F.A.A. has made several changes to the program, but the Democratic staff of the Senate Committee on Commerce, Science and Transportation released a report in December arguing that the agency needs to do more to oversee Boeing.