This concise white paper describes UL's recommendation to manufacturers on making a smooth transition to EN ISO 13849-1.
I've created both long and short position papers for UL on a number of technical subjects. The company does an outstanding job of providing their customer base with clear direction on the technical challenges they face on a daily basis. This informational document is an excellent example of the company's efforts in this area. I'm proud to say that I had the opportunity to create this document after conducting exhaustive interviews with UL's technical team.

