Guides
Three pieces before the first cold morning: what a hat does in the cold, what a brim does in the sun, and where head cover stops being clothing.
What a hat actually does in the coldThe federal guidance on working in cold, quoted word for word, and what it means for the piece you put on your head.
Brims, UPF and what shade a hat really givesWhat the federal guidance says about ultraviolet light, what a UPF number describes, and how wide a brim has to be to matter.
What fits under a helmet, and what head cover is notThe rule that says when a hard hat has to go on, quoted from the regulation, and what a thin cap can and cannot do beneath one.