(b) subject to paragraph 22.1.2.1A, usin(b) subject to paragraph 22.1.2.1A, using a visual surveillance system terminating at the FSCC, which provides indirect observations of the runway and approaches, if the indirect observations do not have the effect of delaying the response time of the ARFFS to an emergency when compared to the response time after making direct out‑of‑the‑window observations.

(b) subject to paragraph 22.1.2.1A, using a visual surveillance system terminating at the FSCC, which provides indirect observations of the runway and approaches, if the indirect observations do not have the effect of delaying the response time of the ARFFS to an emergency when compared to the response time after making direct out‑of‑the‑window observations.

22.1.2.1A For subparagraph 22.1.2.1 (b), a visual surveillance system must not be installed at an aerodrome unless the ARFFS provider for the aerodrome has obtained CASA’s written approval for the installation.

Note: If CASA gives its approval for the installation of the system at the aerodrome, the ARFFS provider is also required to obtain CASA’s approval for the system, under regulation 139.810 of CASR, before beginning to use the system for the purpose of the ARFFS.