Unless otherwise specified, ATS routes are classified as follows:
(a) In subpart A of this part:
(1) Jet routes.
(2) Area navigation (RNAV) routes.
(b) In subpart E of this part:
(1) VOR Federal airways.
(2) Colored Federal airways.
(i) Green Federal airways.
(ii) Amber Federal airways.
(iii) Red Federal airways.
(iv) Blue Federal airways.
(3) Area navigation (RNAV) routes.