The head doctor, assistant coach and lead trainer (orange shirt) have all been issued with breach notices and potential two-year suspensions following the incident at the 2025 Pacific Championships, which left Katoa with a severe brain bleed that has ruled him out of the entire 2026 NRL season.
Following a lengthy investigation, the ARLC have proposed that the three officials be banned from "being concerned, whether directly or indirectly", with any club or competition under the umbrella of the ARLC and the NRL, which includes international matches, the second-tier NSW and Queensland Cups, as well as the State of Origin and similar representative series.
Melbourne Storm forward Katoa suffered three head knocks in a Pacific Championships match against New Zealand on November 2 - one during the warm-ups and two during the game - before traumatic scenes that saw him require oxygen on the sidelines before being rushed to an Auckland hospital with a brain bleed.
He underwent emergency surgery in Auckland and spent two weeks in intensive care before being returned to Melbourne, where his recovery is expected to be long and arduous.
"I'm back at home at the moment and I'm in a good place now," Katoa posted on Instagram in mid-November.
"My recovery is going well and hopefully I can keep ticking all of the boxes that I need!
"And to the Storm fans, in God's timing, 'I'll be back soon'."
An ARLC statement on Monday afternoon had the investigation "has identified a number of serious concerns regarding possible breaches of the NRL Rules and protocols by a number of individuals in the way that Mr Katoa was treated."
The three medicos in question have five days to respond to the breach notice before the ARLC hands down its final verdict.