Applications for authorisation are handled by ECHA.
The Commission decides on the granting of authorisations for substances included in Annex XIV of REACH. As per provisions in the EEA Agreement, once the Commission has taken a decision concerning authorisation, a concurring decision is taken by Iceland within 30 days.
In effect, this means that authorisations granted by the Commission become valid in Iceland within 30 days. A list of granted authorisations can be found here (the page is in Icelandic, but links are provided to the appropriate summaries in English on EUR-Lex).