The EU's trade commissioner has said he broke no public health regulations while in Ireland.
Phil Hogan provided 20 pages of documents to the head of the European Commission Ursula von der Leyen after she requested further details of his trip home earlier this month.
The senior politician said he believed he complied with rules designed to limit spread of coronavirus in the country.
Mr Hogan was among 81 guests who attended a controversial golf dinner in the west of Ireland.
He returned to the Republic on July 31 and was required to restrict his movements for 14 days.
In a document published on the European Commission website, Mr Hogan said he tested negative for Covid-19 while in hospital for treatment on August 5 and claimed that "ended the self-restriction period".
He told RTE: "I am satisfied arising from the test that I did that proved it was negative that I was no risk to anybody.
"Because of the fact that I had a negative test. Because my medical people said I was no risk to anybody. I checked with the Citizens Information website which is funded by the HSE and I felt that I was no risk to anybody by going to Adare.
"I understand the perception. I was covered by the regulations that my work-related activities and under the regulation there is a reasonable excuse mechanism that allowed me the exemption to do that."
A spokesman for Phil Hogan said: "Regarding my earlier interview with @tonyconnelly, just to clarify: I never said that I don’t accept the HSE advice, I was taking issue at the proposition put to me in the interview. At all times, I acted in good faith on the basis of the information available to me."
Following a request from Ms von der Leyen, Mr Hogan published a timeline of his movements in Ireland in which he revealed he played golf in Adare, Co Limerick, before returning to Kilkenny on August 13.
Another 92 cases of Covid-19 have been confirmed in Ireland, the Health Department said.
