WorkSafe have told Gloriavale to improve work practices, but found no evidence to support allegations the religious community isn't managing the risk of fatigue in the workplace.
The site visit follows reports of 23-hour work shifts for members, and threats by church leaders.
Gloriavale was founded by convicted sex offender Neville Cooper, aka the late Hopeful Christian, in 1969 north of Christchurch, before the community - which now numbers about 600 - moved to Lake Haupiri in the 1990s.
A proactive workplace assessment took place at Gloriavale on Monday, a WorkSafe spokeswoman said.
"A team of four inspectors assessed the Christian Community Trust (TA Gloriavale) and four subsidiary companies, and 13 workers were engaged with directly during the assessment.
"This assessment was focused specifically on allegations that Gloriavale was not managing the risk of fatigue in the workplace. No evidence to support the allegations was found."