TCAS

[PFR]

Hi folks,
Can any of you knowledgeable folk point me in the direction of where the regulation for TCAS/ACAS to be installed resides?
Its associated to airspace? Yes? But also associated to type of aircraft and/or certification? (weight / performance/ design code?).
I might have to post this elsewhere but I though I’d start here.

Thanks for any help,
PFR.

[OhNoCB]

Here is something to start:

AUR.ACAS.1005 Performance requirement

(1)
The following turbine-powered aeroplanes shall be equipped with collision avoidance logic version 7.1 of ACAS II:
(a)
aeroplanes with a maximum certificated take-off mass exceeding 5 700 kg;
(b)
aeroplanes authorised to carry more than 19 passengers.

(2)
Aircraft not referred to in point 1 which are equipped on a voluntary basis with ACAS II shall have collision avoidance logic version 7.1.

(3)
Point 1 shall not apply to unmanned aircraft systems

[PFR]

Here is something to start:
Thanks OhNoCB.
Appreciated, PFR.