Manchester Arena attack inquiry: Union asked for views
The Fire Brigades Union (FBU) has been asked to submit its views on how the fire service response to the Manchester Arena bombing could have been improved.
Sir John Saunders, chairman of the public inquiry into the attack, wants more information on its application for "core participant status".
If approved, the FBU would have the same rights at the inquiry as the police and the government.
The inquiry into the 2017 bombing is due to start in September.
Twenty-two people were killed and hundreds injured when Salman Abedi, 22, detonated a suicide bomb as fans left an Ariana Grande concert at the arena on 22 May 2017.
His younger brother, Hashem Abedi, was convicted of 22 counts of murder in March at the Old Bailey.
The inquiry will examine the background to the attack and emergency responses.
In a ruling, Sir John said he had given "considerable thought to how I should deal with this matter while being fair to all parties, achieving the best result for the inquiry and avoiding unnecessary costs".
"I consider that the best way to deal with the matter at the moment is that I should invite the FBU to provide me with a statement setting out their views as to the way in which the response of the fire service could have been improved and whether recommendations should be made or whether the existing changes made following the Kerslake report are sufficient."
He added his view at present was not to grant core participant status to the FBU.
The application was submitted four months after the deadline and "no adequate reason" had been given for the delay, Sir John said.
In April, he turned down an application for core participant status from a group of survivors, who are now taking legal action.