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

1.
en lo que respecta a, en cuanto 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.
En lo que a mí respecta, es una gran idea.
•
As far as the budget is concerned, we need to cut costs.
En lo que respecta al presupuesto, necesitamos reducir costos.