Like a “best practices” type thing? In the US, Federal Regulations cover lighting requirements on passenger car and commercial trucks. FMVSS 108. If your machinery is ever driven on the road they most likely have lights according to this regulation.

www.ecfr.gov/current/title-49/…/section-571.108

There should be a section near the top that covers “incorporated by reference”, where they list all the industry standards referenced. A lot of those are available on archive.org. That’s probably as close to a “best practices” as you’re going to find.

Search by images for FMVSS 108 and you’ll find various diagrams showing light location requirements.

NTEA publishes some information about lighting, but I don’t know if you have to be a member to get it.

If you’re talking about flashing beacons, that’s not covered federally, and each state usually just says what color the flashers can or can’t be (blue reserved for police, red for emergency vehicles, green for snow plows, etc.)

If you have a more specific question, I might be able to answer.