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.'
Meri Huws says her vision is of a Wales where the Welsh language plays a completely central role in public life.
First task of Commissioner:to identify which orgs & companies will be required to comply & to see if they are complying.
Qualifications are: public sector, utilities, telecom companies & businesses receiving more than £400k public money per year.
The minister responsible for the Welsh language, Leighton Andrews, says Meri Huws starting work as the new Welsh Language Commissioner is a very significant day for the future of the Welsh language.
– Leighton Andrews, Minister for Welsh language
The Welsh Language Commissioner will be critical to delivering the Welsh Government's vision of a thriving and vibrant language. She will be a robust and active champion for the language –and will work with organisations to increase the number of services available in Welsh, providing more opportunities for people to use the language in their day-to-day lives.