I'm seriously considering changing my withholding to ensure I owe taxes next year, because I'm not sure if we'll get refunds in a timely manner. Yes, I'll have to make sure to keep some on hand to pay, but I won't have to worry about waiting for a deposit.
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.
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.
I have generally tipped at least 20%. But tipped workers in my state just fought to keep their sub-minimum wage, because republicans convinced them that people would stop tipping if they were paid more. Tipped minimum wage was going up to $6, but now it's only going up to $4.74. I've been tipping too much, and will bring it back down to max 15%.
In a statement, HUD spokesperson Kasey Lovett said that the stunt was “another waste of taxpayer dollars and resources” and that “appropriate action will be taken for all involved.”
I'm seriously considering changing my withholding to ensure I owe taxes next year, because I'm not sure if we'll get refunds in a timely manner. Yes, I'll have to make sure to keep some on hand to pay, but I won't have to worry about waiting for a deposit.