# Is there a list of directs and preferred routes within USA airspace?

In Europe it is possible to find a list of directs which are contained in the Appendix 4 of the Route Availability Document from the Eurocontrol website.

My goal is to find the analogous information for the US airspace. I tried to look in the FAA website but without success. Can you please tell me a way to achieve my goal?

• I don't think so. In the US, if a pilot wants direct he or she simply files that routing or asks for it. I am not aware of any published list of authorized or acceptable direct routings. – J Walters Jun 19 '17 at 14:22
• The only thing in the US that sounds similar to me are TECs. But I don't know if they're really comparable because they're short, low-level routes. – Pondlife Jun 19 '17 at 16:57
• High Altitude Area Navigation Routing Special high altitude routes allow pilots routing options for flight within the initial high altitude routing (HAR) Phase I expansion airspace. Pilots are able to fly user-preferred routes, referred to as non-restrictive routing (NRR), between specific fixes described by pitch (entry into) and catch (exit out of) fixes in the HAR airspace. Pitch points indicate an end of departure procedures, preferred IFR routings, or other established routing programs where a flight can begin a segment of NRR. – JScarry Jun 19 '17 at 21:53
• @JonathanWalters I think you're entirely correct there, and I'd upvote that as an answer. In the middle of the night, it's common to get direct to any fix that Center can enter into their computer, which is essentially anything out there. No limits. – Ralph J Jun 20 '17 at 3:21
• @Federico So your question may serve a larger audience, consider editing the title to change the word directs something more ubiquitous, like routes. – STWilson Jun 20 '17 at 12:33