Camp Mystic filed for Chapter 11 bankruptcy reorganization on Wednesday, nearly a year after catastrophic floods killed 28 people.
The two-day hearing marks the first public session for the joint state House and Senate flood investigating committees.
Camp Mystic has 45 days to revise its emergency plan after Texas officials said that it does not yet fully comply with new rules for youth camps.
The security guard at Camp Mystic the night of the deadly flood has acknowledged that if there had been a general evacuation order early in the storm, lives could have been saved.
The Texas Rangers joined the Texas Department of State Health Services in investigating complaints of neglect by Camp Mystic during the deadly July 4 floods.
Judge Maya Guerra Gamble did order Camp Mystic's owners not to alter or demolish the cabins where campers were housed during the floods.