Awards for cinematography, film editing, live-action short and makeup and hairstyling will still be broadcast in full during the show.
The 91st Oscars will be held on Sunday, February 24, at the Dolby Theatre at Hollywood & Highland Center in Hollywood, and will be televised live by the ABC Television Network.
Earlier this year, it was confirmed that the forthcoming 91st Academy Awards will be airing without a host for the first time in 30 years.
The Oscars also will be televised live in more than 225 countries and territories worldwide.