On her first day in post, Meri Huws says her role is about protecting the rights of Welsh speakers.
She says she will use her enforcement powers if necessary, but says her target won't be small businesses in predominantly English-speaking areas, the proverbial 'Chepstow chip shops.'
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The world record attempt will raise money for the foundation set up in memory of the Olympic gold medallist, who died in May 2013.
In today's Newsweek, Carl talks about what the 'No' vote in the Scottish Referendum could mean for Wales and the impact of legal highs.
England manager talent spotting at Swansea City v Southampton at the Liberty Stadium