Confined space work - hazards and precautions

The following link leads to confined space work. The opening statement is very much valid for all. The statement reads as,

Benjamin Franklin famously once said, “By failing to prepare, you are preparing to fail” but nowhere is this statement clearer—or riskier—than when it comes to worker safety. 

https://www.ehstoday.com/safety/article/55266255/what-employers-must-know-about-the-dangers-of-working-in-confined-spaces?o_eid=1936G3569489I9F&oly_enc_id=1936G3569489I9F&rdx.ident[pull]=omeda|1936G3569489I9F&utm_campaign=CPS250129031&utm_medium=email&utm_source=OZ+EHS+Today+Daily+Update

Please go through the above link for details.