as far as someone (something) is concerned
US /æz fɑːr æz ˈsʌmwʌn (ˈsʌmθɪŋ) ɪz kənˈsɜːrnd/
UK /æz fɑːr æz ˈsʌmwʌn (ˈsʌmθɪŋ) ɪz kənˈsɜːrnd/

1.
per quanto riguarda, quanto a
used to show what someone's opinion about something is, or how a particular thing affects them
:
•
As far as I'm concerned, it's a great idea.
Per quanto mi riguarda, è un'ottima idea.
•
As far as the budget is concerned, we need to cut costs.
Per quanto riguarda il bilancio, dobbiamo tagliare i costi.