§ 71.13
Classification of Air Traffic Service (ATS) routes.
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.
[Doc. No. FAA-2003-14698, 68 FR 16947, Apr. 8, 2003]