Editing Visual flight rules (section)

== VFR cruising altitude rules in the US and Canada ==
In the US, there are specific VFR cruising altitudes, based on the aircraft's course, to assist pilots in separating their aircraft while operating under visual flight above 3,000&nbsp;ft above the surface (AGL) but below 18,000&nbsp;ft Mean Sea Level (MSL). Unofficially, most pilots use these rules at all levels of cruise flight. FAR 91.159<ref>{{Cite web |url=http://ecfr.gpoaccess.gov/cgi/t/text/text-idx?c=ecfr&rgn=div5&view=text&node=14:2.0.1.3.10&idno=14 |title=VFR Cruising Altitudes |access-date=2012-04-21 |archive-url=https://web.archive.org/web/20120414215518/http://ecfr.gpoaccess.gov/cgi/t/text/text-idx?c=ecfr&sid=7a7c1aafb1ed13f92b2f7b6f0e003c70&rgn=div5&view=text&node=14:2.0.1.3.10&idno=14#14:2.0.1.3.10.2.5.35 |archive-date=2012-04-14 |url-status=dead }}</ref> states that any aircraft:
* On a [[Magnetic declination#Navigation|magnetic]] [[Course (navigation)|course]] of '''0-179 degrees''' shall fly at an '''odd''' thousand ft MSL altitude +500 feet (e.g., 3,500, 5,500, or 7,500&nbsp;ft); or
* On a [[Magnetic declination#Navigation|magnetic]] [[Course (navigation)|course]] of '''180-359 degrees''' shall fly at an '''even''' thousand ft MSL altitude +500 feet (e.g., 4,500, 6,500, or 8,500&nbsp;ft).