I’ve just started working on LCA of steel tubes from the point of view of the steel tubes industry. Just today I’ve discovered the PCR for steel products and I wonder if LCI that I will conduct, must comply with this PCR or the previous one?

This is a draft PCR developed in the International EPD System to be used if you wish to develop an Environmental Product Declaration within this system. A general-purpose LCI does not have to follow this PCR -- it depends on what you intend to use it for. I hope this answered your question.