Cabinet had still not made a decision on the recommendations of the PSC report.
The Office of the Regulator oversees the telecommunications, broadcasting, postal and electricity sectors in Samoa.
In statement issued from the office, Lefaoali'i said she resigned because her family and friends had counselled her that it was the best move.
"...it is time for me to say my farewell and move on with my life. My family have had to sacrifice a lot for me during my time as the Regulator given the demands of the job," Lefaoali'i said.
