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

1.
used to show what someone's opinion about something is, or how a particular thing affects them
:
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As far as I'm concerned, it's a great idea.
•
As far as the budget is concerned, we need to cut costs.