The 21-year-old's RBS 6 Nations campaign ended in disgrace as he became only the third player to be sent off while playing for the national team. Hogg was dismissed after 23 minutes in Cardiff after smashing his shoulder into the jaw of Dragons fly-half Dan Biggar. Tournament organisers have suspended him until midnight on April 6.
Hogg first apologised to Biggar, his team-mates and referee Jerome Garces - who initially showed him a yellow card before upgrading the punishment after viewing a replay - following the match and also issued a press release apologising to the Scotland support.
Now the British and Irish Lion has made a second public apology as he signalled he would not appeal the disciplinary panel's sanction. "I'm very sorry," Hogg said. "I have let people down and apologise to my team-mates, the Scotland management and all Scotland supporters. I am disappointed to be missing three games but fully respect the committee's decision."
Hogg learned his fate after appearing before a disciplinary hearing in London and will now miss his club's next three RaboDirect Pro12 fixtures against Scarlets, Ospreys and Benetton Treviso. In a statement, the Six Nations disciplinary committee explained Hogg's punishment would have been longer had he not shown such remorse after the match.
The statement said that "it was in the mid-range of the IRB's sanctions for the type of offence, resulting in an entry-point of a five-week playing suspension" and that Hogg was to be given a "40% reduction" in sentence for his contrition.
Meanwhile, Scotland prop Geoff Cross has joined Glasgow Warriors on loan for the remainder of the season from Edinburgh. The 31-year-old is to provide injury cover in the front row, with Mike Cusack set for another spell on the sidelines.
"We're delighted to welcome Geoff into our squad," said Gregor Townsend, the Glasgow head coach. "We're getting an experienced tighthead to strengthen our front row as we push for a play-off spot."