Most of the Unix and Unix-like operating systems (e.g. Linux, BSD, or Solaris) support POSIX.1e ACLs, based on an early POSIX draft that was withdrawn in 1997.
De fleste Unix og Unix-lignende styresystemer (fx Linux,BSD eller Solaris) understøtter POSIX.1e ACLs, baseret på en tidligere POSIX udkast som blev trukket tilbage 1997.