13Regular reviews

#### 13 Regular reviews Classifications of volumes of Australian‑administered airspace (1) CASA has the function of conducting regular reviews of the existing classifications of volumes of Australian‑administered airspace in order to determine whether those classifications are appropriate. Services and facilities (2) CASA has the function of conducting regular reviews of the existing services and facilities provided by the providers of air navigation services in relation to particular volumes of Australian‑administered airspace in order to determine whether those services and facilities are appropriate. General (3) CASA has the function of conducting regular reviews of Australian‑administered airspace generally in order to identify risk factors and to determine whether there is safe and efficient use of that airspace and equitable access to that airspace for all users of that airspace.