Comment by dredmorbius

For those questioning this claim ... here's the 2008 FAA circular detailing LRBL, which itself is spelled out in Title 14, Code of Federal Regulations (CFR), part 25, § 25.795(c):

<https://www.faa.gov/documentLibrary/media/Advisory_Circular/...>

And the relevant CFR: <https://www.ecfr.gov/current/title-14/chapter-I/subchapter-C...>.

(TIL)