La cuarta edición de Norma IEC 60900 Trabajos en tensión: herramientas manuales para uso hasta 1000 V CA y 1500 V CC was just published.  This standard is applicable to insulated, insulating and hybrid hand tools used for working live or close to live parts at nominal voltages up to 1000 V AC and 1 500 V DC. This fourth edition cancels and replaces the third edition, published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of a third category of tools has been added, namely hybrid hand tools b) introduction of a new informative Annex A on examples of insulated, insulating and hybrid hand tools. The International Electrotechnical Commission (IEC) based in Geneva, Switzerland is the leading global organization that publishes consensus-based International Standards and manages conformity assessment systems for electric and electronic products, systems and services, collectively known as electrotechnology. Technical Committee 78 – Live Working of which I have the privilege of being the International Chair, prepares International standards for tools, equipment and devices for utilization in Live Working, including their performance requirements, care and maintenance.