Leading referee Steve Walsh has retired from all forms of match officiating with immediate effect to pursue business interests outside of rugby.
The 43-year-old New Zealander, who moved to Australia after New Zealand Rugby sacked him following indiscretions on and off the field, is a veteran of four Rugby World Cups since making his Super Rugby refereeing debut in 1997.
He took charge of a Test match for the first time a year later when Argentina played France and has refereed 60 Tests in total, making him the third most capped international referee of all-time.
"I have lived my dream and I am truly grateful for every experience that I have had in rugby. It's been an incredible journey," Walsh said on Friday.
"I will be forever indebted to Australian rugby for including me so openly following a difficult period for me personally.
"I would also like to acknowledge my time with New Zealand Rugby. Their decision to end my contract in 2009 was challenging, but was ultimately the best thing has ever happened in my life. It made me confront who I was and how I carried myself."
Australian Rugby Union chief Bill Pulver congratulated Walsh on his career.
"His departure is a big loss to Australian Rugby and the game globally, but we fully respect Steve's decision to pursue his own personal dreams and wish him well," Pulver said.
"In making this significant decision, Steve has displayed a strong level of integrity and respect for the game."